Just because a Scout is thrifty doesn’t mean you never need help monitoring your spending.
Specifically designed for Scouts, the Boy Scouts of America Discover® Prepaid Card is a prepaid, re-loadable card (not a credit card) that is safer and more convenient than carrying cash.
So let’s say you give yourself a budget. Say, $50 per week. You (or a parent) put $50 on the card and you literally can’t go over your budget. Then you replenish it the next week.