Our longest trip was 21 nights, back in the "old days" when we used to camp in an 8x10 foot tent at Fort Wilderness. Now we average 15 nights in Nov/Dec, including a four-night cruise on Wonder and four or five nights at the end of May. This year, though, we're doing four nights in May, then 2 nights before Thanksgiving at WDW, two four-night cruises on Wonder and then three more nights at WDW. For 2006, we'll be doing a land/sea package sometime during the summer (I wouldn't ordinarily do a package, but DH and I are coordinating a trip for a group of wheel-chair bound friends, and we'll be going with them --as they've told us-- to do all the "leg work"! We'll do our usual May trip, and probably another WDW/Cruise combination in Nov/Dec.
Beth