Okay, so you’re going on an extended trip and wanting to use Simply Declare as you hop from country to country.
Perfect, Simply Declare will keep track of all your receipts for the stuff that you will have to declare when you get back home. My tip is to occasionally send yourself a list of your purchases as a backup. Simply Declare will keep a running tab, but just in case one of the little ones gets a hold of your phone and decides to hit the “start new trip” button, you haven’t lost all your information. I like to do this anyways, just to see what I have bought listed in a handy alphabetical list. If I have any alterations needed to make I’m not waiting until the very last minute, i.e. standing in the front of the border agent, which will remove a tremendous amount of stress.