I usually make a list of things I need for all occasions, even a "to do" list when I go out since I try to set a day aside for errands (save on gas) and a "trip" list along with my needed documents, trip itinerary, etc. kept in a folder for each trip. I keep all my lists on my computer so I can update as needed. Love the Excel program since I can sort the list by item, store, store location, notes, etc. Keeps me from wandering all over the store and then still not getting something because I don't want to make the trip to the back of the store again. I have a daughter I think tops all - she makes a list of all the lists she has to make. Does anyone else do that?