Just did some pre-trip shopping last night... misting fans, extra socks for kids, hand sanitizer, another pair of sunglasses... oh, and some other odds and ends, too!
We have a laundry basket in my room that is where the Disney stuff goes to - come home from a trip and stuff goes there, or stays in suitcases that we'll need specifically for trip next time.
I also finally got wise last trip and typed up on computer a packing list - everything and anything we need is in that list. Just went over it for upcoming trip, tweeked what needed to be tweaked clothes-wise for a summer versus fall trip. Used to sit down and start thinking and jotting down what we need to pack and keep adding stuff to list as thought of them... oh, makes it so much easier now!
and all my "calculations" are figured out now ahead of time, too.
Such as okay, son needs X amount of diapers for X amount of days, plus X amount of backup extras just in case.
Or like me and my tees... okay, 9 nights... packing 15 tees per my calculations, lol. one per day, one extra packed in case flight messed up/cancelled and need to stay extra day (almost happened to us last year!)... and then 5 extra - heck it's hot and sweaty, after a pool break day want to not put same sweaty tee from earlier on, want a fresh one, or caught in rain and drenched, want a fresh one.
So I have calculations like this that take me forever to figure how much X, Y, Z of clothes to pack for everyone.
Making a list sure helps to save for future trips!
And then after-trip shopping.... then I find myself spending money printing prints out from the photos we took.... getting new photo album for each trip... printing out regular size prints, and okay, what do I want enlarged to frame, and then buyign frames.