Although the Five Special Fruits do not combine in volume with non-special fruits for the after-blessing of al ha'eitz if eaten sequentially or even interspersed with each other, they DO combine for the after-blessing if:

• They are considered to be one food, AND
• The main component is the Special Fruit.

Example
                        Situation
You eat at least 1.3 fl. oz. (39 ml, or 1/6 cup) within four minutes of dates stuffed with almonds.
What To Do Say the after-blessing of al ha'eitz over both types of fruits.

At the Passover seder, all Jews above the age of bar mitzva or bat mitzva (including women--unlike on other Jewish festivals) must drink wine for kiddush and for the other three times in the seder when the borei pri ha'gafen blessing is said.

When tearing kri'a, do not tear underwear, a coat or sweater worn for warmth, or talit katan. To avoid ruining good or expensive clothing, you may change to other clothes before doing kri'a.
You may tear the same garment more than once if you need to do kriya for more than one dead person or for seeing the Temple mount more than once (in more than 30 days).

Opinions differ in whether you should give priority in eating to what you like the most (chaviv) or what is most important (chashuv).

You may pour excess wine from kiddush back into the bottle as long as there is more wine already in the bottle than what you are pouring back and as long as the bottle has been toveled.
If there is less wine in the bottle than in your glass, you must pour at least one drop of wine from the bottle into your wine glass or cup before you pour it back into the bottle.
 

You may continue riding in a car or taxi driven by a non-Jew between sunset and dark (tzeit ha'kochavim) beginning a Jewish festival, even if the vehicle is driven just for you. You:

• May not do this on Shabbat.
• Must have already paid before sunset. 
• May not open a door that will cause a light to turn on or do any other melachot.
• If you have already traveled outside techum, you may move only 4 amot (85” or 116 cm) away from the vehicle, unless the driver leaves you off in an enclosed domain (any area surrounded by walls or an eruv), in which case you may go anywhere in that domain.
• If you had not gone outside of techum, you may go anywhere in the domain and you may also go up to 2000 amot (3,542 ft. or 1,080 m) outside of the domain.

In a halachically public area (reshut ha'rabim) with no eruv, on Shabbat you may move a stationary object up to 4 amot (6'9 1/2", or about 2 meters) from the place where you find it. If you are already transporting the object when you realize it, do whichever one of the following applies:
Situation You are walking on Shabbat in a public domain (reshut ha'rabim) that does not have an eruv and find something in your pocket.
What To Do

• If you were walking and are still walking, go back to the most recent private domain and leave the item there. (If you cannot reasonably get back to where that was, continue to your destination and drop the item inside the first private domain you reach.)
• If you have already stopped walking, drop the item where you are.
• If you had stopped walking and then resumed walking, drop the item where you are.

As on Shabbat, light Jewish festival candles wherever you will eat dinner that night.

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.

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.

Light Shabbat candles wherever you will eat dinner.

Kashering: Pots and Utensils: Libun: How It Works  
Kashering by “burning” (libun) burns up any residual food taste and is of two types:

• “Complete burning” (libun gamur), and
• “Light burning” (libun kal).

Libun Gamur: Heating To Red-Hot for Direct-Heat Utensils
Libun gamur (complete burning) is when the entire metal substance of a utensil, oven, or other cooking surface becomes red hot.
When To Use Libun Gamur
Heating to red-hot (libun gamur) is required to kasher utensils that are used with direct heat, such as baking pans, roasting pans, and roasting grates. Libun gamur works on anything except pottery (this is a rabbinic injunction since you might not do a good job).
How To Do Libun Gamur
Libun gamur can be done by blowtorch or by placing the item in a kiln.

Libun Kal: Heating so Other Side of Pot Singes Paper

Heating so that the heat goes through to the opposite side of whatever is being kashered is called libun kal. 
When To Use Libun Kal
This method may be used whenever there is a question of whether an item needs libun or not, such as grates on a gas stove.Grates on a gas stove are considered questionable since food may have overflowed onto them and, due to safek, we kasher using libun kal.
Note Grates on a gas stove do not need libun gamur.
Note Whenever hag'ala is effective, you may instead use libun kal, since libun kal is a stronger form of kashering. Sometimes you may find it more convenient to use libun kal to kasher an item that needs only hag'ala. You may use libun kal instead of hag'ala since libun kal is a stronger form of kashering.
Situation A stainless steel pot of the opposite gender went through a dishwasher cleaning.
What to Do Even though the pot only needs hag'ala, you may instead kasher it by libun kal by putting it in an oven at 500° F (for this application).
How To Do Libun Kal
Direct a flame, such as a blowtorch, onto the inside of a pot. Pot is hot enough when a piece of paper that touches the outside of the utensil burns (it need not burst into flame, just to smolder and be consumed).

To do Shabbat kiddush,

• Say, or hear, the Shabbat kiddush blessings/segments, and
• “Establish a meal” (kovei'a se'uda).

For details, see How To Do Shabbat Evening Kiddush  or How To Do Shabbat Daytime Kiddush.
NoteThere is never any requirement on an indvidual to drink kiddush wine (except at the Passover seder), but the kiddush wine must be drunk by one or more persons.

If you own any chametz, you must burn some of it in order to fulfill the commandment of burning chametz: this is a mitzva from the Torah!