What's the concensus on carrying cash on the trail? On an extended hike - say 3 weeks or more - you're bound to have some expenses, whether it's lodging, food, treats. or whatever, some money will be a necessity. On the other hand nobody wants to be wlking around with a wad of cash in their pocket. I'm planning to do several sections of the AT this year, of several weeks duration. I know I'll have to have some cash on hand, but what are the alternatives? Does anyone still use/take Travelers Checks? Are ATMs available at many supply stops? What about credit cards? Comments?