It was fun while it lasted, but finding that surprise 5-dollar bill in the pocket of some old jeans is becoming more rare. Lots of Texans are opting not to carry any cash at all, and if we do have paper money in our wallets it's probably less than $25
If you really want a new fancy new tablet or iPad, take your driver's license with you to buy it.
Texas has a new law that kicks in next January, that will allow a store to decline your credit card purchase if you forget your ID.