answer:When I was taking a lot of supplements and traveling, I used mini zip-lock bags. 2 inches by 3 inches There are several smaller sizes….1.5” x 2” and 1.5” x 1.5.” And of course, larger ones. Just fill the appropriate sized bag and put it in your purse or pocket. It is not illegal to transfer Rx pills into another container. People who fly often use versions of these if the pills aren’t too bulky, here. They are designed to be used for a week. When my mother developed dementia, we used two of these for morning and evening so she wouldn’t get confused with having to open bottles.