Before any vacation, make a packing list, then check each item off as you pack it. This will help you to ensure that you are not forgetting anything vital. I once forgot my toothbrush, and had to run out and buy one when I got there, since then, lists are my go-to.
You’ll feel so much more accomplished the next day if you unpack immediately after a trip or vacation. Even if you’re tired, empty that suitcase, toss the dirty clothes in the hamper, and empty the toiletries bag. You’ll wake up with less to do.