You may not wash or hang up wet laundry on Shabbat (or Jewish festivals).  The halachot for drying laundry depend on whether you use a clothesline or a dryer:

Shabbat: Laundry: Clothesline
You may take down laundry on Shabbat only if it was dry before sunset on Friday, and only if you don't:

• Transfer the laundry from one halachic domain to another (hotza'a), or
• Give the impression that the laundry had been washed on Shabbat (mar'it ayin).

If laundry on a clothesline is still wet at sunset on Friday, the laundry is muktza and you may not take it down or use it during Shabbat. This is different from the case of a dryer.
Reason On the clothesline, there is no certainty that the laundry will dry during Shabbat (it might rain, it might be cold or cloudy...), so the person cannot have in mind that it will dry during Shabbat.

Shabbat: Laundry: Dryer
Laundry in a dryer (even if it was wet at sunset) that was turned on before sunset on Friday (or Jewish festivals) is not muktza, even if you do not intend to wear it.  You may remove the dry laundry from the dryer on Shabbat as long as no light goes on.

You may not do any types of expert or professional work after halachic midday before the first Passover seder.  These types of prohibited work are whatever would be prohibited on chol ha'moed.

You may not wash or hang up wet laundry on Jewish festivals (or Shabbat).  The halachot for drying laundry depend on whether you use a clothesline or a dryer:
Jewish Festivals: Laundry: Clothesline
You may only take down laundry on Jewish festivals if it was dry before sunset at the start of the festival, and only if you don't:

• Transfer the laundry from one halachic domain to another (hotza'a), or
• Give the impression that the laundry had been washed on the Jewish festival (mar'it ayin).

If laundry on a clothesline is still wet at sunset before the festival, the laundry is muktza and you may not take it down or use it during the festival. This is different from the case of a dryer.
Reason On the clothes line, there is no certainty that the laundry will dry during the festival (it might rain, it might be cold or cloudy...), so the person may not have in mind that it will dry during the festival.
Jewish Festivals: Laundry: Dryer
Laundry in a dryer (even if it was wet at sunset) that was turned on before sunset beginning the Jewish festival (or Shabbat) is not muktza, even if you do not intend to wear it.  You may remove the dry laundry from the dryer on the Jewish festival as long as no light goes on.

The earliest permissible time to say mincha before a Jewish festival is one-half hour after halachic midday, as with all mincha prayers including before Shabbat.

You must say the shema no later than the end of the third halachic hour of the day in the morning. If you did not say it in time:

1. If it is before the fourth halachic hour of the day, say the entire shacharit service, as long as you will complete the amida before the end of the fourth halachic hour.
2. If it is after the fourth halachic hour of the day but before the end of the sixth halachic hour of the day, say birchot ha'shachar (and you may also say korbanot) and then skip all of shacharit up to the amida, which you should say as soon as possible.

The purpose of the rabbi at a wedding is to ensure that the extremely detailed wedding halachot, as set out by the Shulchan Aruch, are followed correctly. If not, the wedding might not be kosher.
 
A Jewish marriage includes: a written document (ketuba); a financial transaction (ring) in front of two kosher witnesses; and physical intimacy. 
 
Witnesses
 

• The witnesses must be shomer Shabbat Jewish men.
• The bride and groom should confirm verbally that these are the two (and the only two) witnesses that they want.  

 
Ring

• The groom must confirm that he acquired and owns the ring.
• The groom must say Harei at mekudeshet li ...  to the bride and place the ring on her (index) finger.

 
Ketuba

• The ketuba must be kosher.
• Before the chuppa, someone (anyone, including women) must fill in (no safrut is required for this):  the Hebrew names of the bride and groom; the date the wedding is taking place; the wedding location (city, etc.); and that a kinyan was made.
• The ketuba must be signed by two kosher witnesses.

Neither men nor women may say the blessings that precede and follow the shema after the fourth halachic hour of the day. In extreme circumstances (if compelled or forced), men (but not women) may still say the shema blessings until halachic midday.

Do not eat a full meal (meaning, do not eat bread or a lot of mezonot) after halachic midday on the afternoon before a Jewish festival.

There are two requirements for Shabbat daytime kiddush: Say or Hear Kiddush Segments/Blessings and Establish a Halachic Meal (kovei'a se'uda):
 
1. Say or Hear Kiddush Segments/Blessings
    You must say, or hear, the Shabbat daytime kiddush segments/blessings and someone
     must drink at least 2 fl. oz. (59 ml) of the kiddush beverage:

• Say or Hear Kiddush Segments/Blessings
  • Torah segment(s): V'shamru bnei Yisrael (even beginning from al kein).
  • Blessing over at least 3.3 fl. oz. (99ml) of drink:
    • Borei pri ha'gafen (if on wine or grape juice), OR
    • She'hakol nihiyeh bi'dvaro (if on other beverage/chamar medina).

• Drink at Least 2 fl. oz. (59 ml) of the Kiddush Drink

 
2. Establish Halachic Meal (Kovei'a Se'uda)
    You must establish a halachic meal (kovei'a se'uda) shortly after saying or hearing
    Shabbat morning kiddush by either:

• Drinking Wine--at least 4 fl. oz (119 ml) of wine (or grape juice) within 30 seconds, OR
• Eating Bread/Mezonot--at least 1.3 fl. oz. (39 ml, or 1/6 cup) of bread or mezonot within four minutes.

Note The second half of making kiddush, “establishing a meal” (kovei'a se'uda), can be fulfilled simultaneously when you fulfill the subsequent, separate Shabbat requirement for “eating a meal” but in that case, you must eat 1.9 fl. oz. of bread.
Note If you make, or hear, Shabbat morning kiddush on any beverage except wine or grape juice, you must also eat at least 1.3 fl. oz. (39 ml, or 1/6 cup) of bread or mezonot within four minutes to establish the kiddush meal. If you do not want to eat bread or mezonot, only drinking at least 4 fl. oz. (119 ml) of wine (or grape juice) within 30 seconds will fulfill all the kiddush requirements. 
Note If you have not fulfilled the kiddush requirements, you may not eat other foods, such as fruit or fish at a kiddush.
Note   Once you have heard kiddush and either eaten the required bread or mezonot or drunk the required 4 fl. oz. of wine or grape juice, you do not need to say or listen to kiddush again if you eat your actual meal later (except if you need to say kiddush for other people who have not yet heard or said kiddush).

Earliest time to say shema and amida is 72 minutes before sunrise, b'di'avad, since the guideline is halachic “day.”

Anyone in the household who has reached bar or bat mitzva age can light Chanuka candles, thereby fulfilling the halachic requirement that one candle per household per night must be lit.
 

You may say ma'ariv on Friday afternoon (erev Shabbat) as early as plag ha'mincha (1 1/4 halachic hours before sunset), as long as you say mincha before saying ma'ariv. So, if it is now plag ha'mincha, you may say mincha and then follow it as soon as you wish with ma'ariv.

 If a woman can either study Torah or say Tehilim (Psalms; recited as prayers), the priority is for her to study any halachot that she needs to observe before saying Tehilim or other prayers.

To be permitted to say ma'ariv early, before sunset, say mincha no later than 1 ¼ halachic hours before sunset.

In general, porches and awnings on the outside of a house will not qualify as being part of the house for the halachot of carrying on Shabbat if there is no eruv. The porch or awning must be in the structure of a shape of a doorway (tzurat ha'petach): vertical poles and cross beams must be on TOP of the vertical poles in order to be considered a halachically enclosed area.
Note Since these are not intended to be a doorway, no mezuza is required on them.