- Eating a meal on erev Yom Tov after the tenth hour is not permitted, therefore when erev Yom Tov is on Shabbos, one should eat the third seudah before the tenth hour. If one did not start before, he may eat a little but not a full meal.
- There is a mitzvah of honoring and enjoying Yom Tov, therefore preparing the seuda and house for Yom Tov is a fulfilment of the mitzvah.
- One should bath before Yom Tov or at least wash his face, hands and legs. Therefore when erev Yom Tov is on Shabbos, before Yom Tov one should wash their face and hands, and then switch into their Yom Tov clothing.
- There is a mitzvah of Simcha on Yom Tov – each person with what makes them happy.
- One should have two seudos with Lechem Mishneh.
- Hadlakas Neiros – On the first night, there are different minhagim when to light (before nightfall, after nightfall or before the seuda), and whether to make the bracha before lighting or after. If one does not know their minhag she should light and recite the bracha as she does for every Shabbos. The second night one should light after the זמן, from an existing fire, and do not extinguish the fire.
- When erev Yom Tov occurs on Shabbos, the time for lighting the candles is after צאת – the time one normally does work שבת מוצאי. One should as well say either ותודיענו in shemoneh esrei, or to say קודש לקודש בין המבדיל ברוך.
- Both nights 2 brachos are made: שהחיינו ,טוב יום של נר להדליק.
- At kiddush she may answer אמן to her husbands ברכת שהחיינו
- טוב יום מוצאי – havdalah is said without בשמים and a candle.
- Washing dishes on Yom Tov – same as on Shabbos, but with hot water.
- Sweeping and washing the floors – sweeping is permitted, washing is not permitted unless the floor is very dirty or sticky. One can pour water on dirty spots, and push the water away with a stick.
- Using a non-Jew – same as Shabbos. Consult a Rav.
- Certain melachos are permitted for what must be eaten that same day – cooking, baking etc. (returning food and replacing food from the fridge is permitted on Yom Tov). However, one cannot do any of these melachos for the next day of Yom Tov.
- One may cook a full pot of food or water, even though it is not all for that day.
- It is prohibited to cook for a non-Jew.
- Making a new fire is אסור. A fire can be lit from an existing fire. Raising or lowering a flame for the sake of the food is permitted.
- Electric oven – one can use a Shabbos clock.
- Squeezing fruits for their juice is אסור. However, on to food is permitted. Wipes, squeezing wet hair, washing dishes with a sponge – same as Shabbos.
- Showering: in case of real need – wash half of the body then dry, wash second half. One can use cold or warm water, liquid soap, and putting shampoo on your head without lathering it (let the water do it). In case of difficulty and pain, one may take a full body shower. Dry the body without squeezing. Babies may be bathed normally in case of need.
- Carrying in a place without a reliable eiruv – permitted for that day’s use, therefore when going to the park only bring with you what is reasonable.
- Melacha of borer – should be done in the easiest way, the way it would be done during the weekday.
- Melacha of tochain – those foods that when grinding them before Yom Tov will lose their freshness may be grounded on Yom Tov. If it will not lose its freshness than one must use a slight shinui in order to grind on Yom Tov.
- Measuring – if it will make a difference than it is permitted.
- It is אסור to do any preparation on the first day for the second day, even if it involves no melacha. One may not set the table on the afternoon of the first day for the night time meal.
- One may fill a dirty pot with water, or rinse the pot, as this is a preventive measure.
- It is permissible to take food out of the freezer to defrost on the first day for the second day, but it must be done early in the day.
- Muktzeh – it is permitted to move items of muktzeh for eating purposes.