I've got a boat load of old reservation confirmations and notes (date and time of calls, CM's name, details of transactions, etc) from past DVC trips. Trips we took, trips we gifted, trips we canceled. How long should I keep these records? I'd love to dump them...they're really starting to make my (formerly orderly) DVC folder bulge. But, something is making me hold on to them in case there's ever a dispute about my points usage. So, what do you do?