This

. I save up any money I earn on my ebates and checkout apps through the year and purchase a Starbucks gift card before each trip. I link the card to my app but bring the card to the parks. In the past wifi was sketchy, so I prefer to hand them a card. I still earn the stars on the app. We don't do the
ddp, so I use the Starbucks money to treat us to drinks and snacks in the park without guilt. The exchange is automatically calculated based on the daily exchange. Don't have to do anything.
I already have $200 saved up for this year -- and it won't go to waste since any balance can be used at home when we get back unlike those pesky snack credits.