If you said the blessing for Jewish festival candles instead of for Shabbat candles:

• Women may not correct themselves, but
• Men may say the correct blessing and light the candles.

It is a mitzva but not a requirement for attendees to shovel some earth into the grave. Women should only do this if no men are present.

Stand up a little to honor God when you say God's name in the introduction (nevareich eloheinu) if you ate with 10 men. This is a non-binding custom, not a halacha.

Tzitzit should be worn day and night but not during sleep. (The commandment is to wear tzitzit only during the day, but they still provide protection at night.)

Choose the greatest Jewish scholar (talmid chacham) in your town or city as sandak (person who holds the baby for the brit mila), since kabbala says it is a good omen for the boy's soul. A woman may be a sandeket but only if no suitable man is available.  If no Jewish man or woman is available, a non-Jewish person may serve as a sandak or sandeket.

To dress tzenu'a, women should:

• Cover torso to elbows and to knees;
• Cover collarbones (and hair, if married).

Also, the garments must not cling tightly to the woman's body.

When a person speaks directly to God, it is very important to demonstrate humility. Since the Talmud says that covering one's head is a form of humility (and that learned Jews/talmidei chachamim used to cover their heads), men who wear a talit for prayer should ideally use it to cover their heads whenever they wear it, but the minimum is during the amida.

Clothes that are worn by both genders may be worn by either gender, even if they were intended to be worn by just one gender. So women may wear clothes that have been made and intended for men (begged ish) if women wear those garments, too. There are some exceptions--consult a rabbi.

Women (even if 10 or more) do not make a minyan, only a mezuman.  So do not say the birkat ha'mazon's minyan introduction but simply say the mezuman introduction if:

• 10 or more women ate together, without men present;
• At least two women washed, said ha'motzi, and ate bread; AND
• At least one more woman ate some type of food.

If you are outside the room in which a minyan is praying, you may still join and reply to all of the prayers as long as:

• You can see or hear the congregation, or
• There are at least 10 men (in addition to you) inside the main room.

 

Do not get a haircut for the first 30 days of mourning. When mourning for parents, a mourner's hair should grow for three months from the last haircut but not for less than 30 days from the time shiv'a began. This applies to men and women, except if the woman needs to cut her hair for immersing in the mikva.

The only time when matza must be eaten to fulfill the commandment of eating matza is on seder night(s). There may be a mitzva to also eat matza on the other days of Passover (but there are conflicting opinions about that).
However, men must eat matza in order to fulfill the commandment of eating two meals a day on each of the festival days.
 

It is a form of honor for the congregation for the leader to dress up (some congregations have the custom of requiring the leader to wear a jacket for mincha for this reason). A talit is usually the form of dressing up for all men during prayer services.
 

Introduction to Missed Amida/Tashlumim
If you accidentally miss any amida, you may make up for it (tashlumin)--unless you intentionally missed it.

Amida: Errors: Missed Amida/Tashlumin: Regular Days
Missed Ma'ariv Amida
If you accidentally did not say the amida for ma'ariv:

• Say the normal shacharit amida the next morning with the other men in the minyan.
• Say ashrei.
• When the leader begins his repetition of the amida, say the amida along with him, word for word, including kedusha.
• After saying ha'el ha'kadosh, finish your amida at your own pace.
• If you are not with a minyan, say ashrei and then repeat the shacharit amida.

Missed Shacharit Amida
If you accidentally did not say the amida for shacharit:

• Say the normal mincha amida with the other men in the minyan.
• Say ashrei.

• When the leader begins his repetition of the amida, say the amida along with him, word for word, including kedusha.
• After saying ha'el ha'kadosh, finish your amida at your own pace.
• If you are not with a minyan, say ashrei and then say the mincha amida a second time.

Missed Mincha Amida
If you accidentally did not say the amida for mincha:

• Say the normal ma'ariv amida with the other men in the minyan.
• Say ashrei.
• Say the ma'ariv amida a second time. Skip modim.
• If you are not with a minyan, say ashrei a second time and repeat the ma'ariv amida.

Note At the next prayer service, say whatever is the correct amida for that later prayer service, even if it is not the same amida that you missed.
If you miss mincha on Friday, say the ma'ariv service for Shabbat and repeat that amida again.
Note Once the time for the next amida has passed, you may not make up the missed amida.
Example
If you missed mincha on Thursday, you may only say tashlumin for mincha as long as you may still say ma'ariv, which is daybreak of Friday morning.

Amida: Errors: Missed Amida/Tashlumin: Shabbat/Jewish Festivals
Even if you forgot to say a prayer service on Shabbat and Jewish festivals, say the next prayer service amida and repeat THAT amida to make up (tashlumin) for the one you missed--even if it is no longer Shabbat or the Jewish festival.
Exception
There is no tashlumin for musaf. However, you may say musaf until sunset, even if you already said mincha.
Note If the time for mincha has arrived (½ hour after halachic midday), you must say mincha before saying musaf (but if you could join a mincha minyan later, you may say musaf now).
Situation
You miss Shabbat mincha.
What to Do
Say ata chonantanu in ma'ariv, but only for the first time you say the amida, not the second time (which is tashlumin).
Situation
You forget to say ma'ariv on Saturday night.
What to Do
Say ata chonantanu on Sunday morning in the second amida (which is tashlumin).

If Doubt about Whether You Said Amida
If you are not certain whether you said an amida:

• On a weekday, assume that you did not say the amida and say it anyway.  Intend that:
  • If you forgot the previous amida, this makes up for it, and
  • If you did say the previous amida, the second one is a nedava (free-will “offering”).
• On Shabbat and Jewish festivals, do not say the amida twice as tashlumin.

            Reason You may not say a voluntary prayer service (nedava) on these days.
Men who intentionally delayed saying shacharit past the fourth halachic hour of the day still say that amida until midday but if they did not say it by midday, they may not say tashlumin. See Minyan: Keeping Pace: Shacharit Minyan.

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.