Some have the custom to go to graves of Tzadikim to ask from Hashem to have mercy on them in the Zechut of the Tzadikim lying there.
One should remember to prepare: sweet apples, honey, new fruits, pomegranates, head of a ram or fish, meat, sweet foods, drinks and for those who have the custom, round Challot.
On Rosh Hashanah, it is customary not to eat any foods that are bitter, sour, overly sharp, or that contain nuts or vinegar. One should ensure that the pages of a newly purchased Machzor aren’t attached to each other (due to being uncut), as it is prohibited to separate them on Rosh Hashanah.
In honor of Rosh Hashanah, one should take a haircut, bathe and cut one’s nails, as necessary.
On Erev Rosh Hashanah, one should not donate blood or undergo any procedures or tests involving blood loss. [This does not apply in cases of great need, and certainly not when it is Pikuach Nefesh.]
Prior to every Chag, one has to make sure that the Chag requirements of the needy be met. Chag is also an especially appropriate time to host guests. Some have the custom to fast until midday.
