What's cash? Seriously, I have been known to carry the same $10 in my wallet for months at a time. We write maybe 3-4 checks a month, use auto pay for reoccurring bills, PayPal, debit cards and credit cards when needed. Within our lifetime cash will become obsolete for most of us. Only the poor and homeless will use it.
Seriously, when we need cash for travel we'll either write a check to the local bank drawn on our CU account or use one of the 30,000 CU ATMs that are members of the national COOP. You can also cash a check at any CU that is a participating COOP member as long as your home CU is a member.