Hi! We are cruising for the first time and I bought lanyards but they came without pouches for the cards. I was thinking about getting little lightweight nylon zipper wallets instead of clear plastic pouches with the idea that they might be good to keep a couple of dollars for tips or the kids to tote a lip balm or whatnot. HOWEVER, I just realized clear pouches might be better for scanning or referencing our KTTW cards. Can you DCL veterans give me advice?