I just signed up for WorldCon 2008 in Denver.  This works out really well for me, since Ginny grew up in Denver and has a lot of friends and family there.  She's not at all interested in convention-going, so for out-of-area conventions, it's a solo trip for me unless there's something for her to do the days of the convention.  Denver's an ideal situation; there are plenty of people she'll want to visit with.

This will be my ... hm... Fourth Worldcon.  I went to LACon II in Anaheim in 1984, ConFrancisco in 1993, and ConJose in 2002.  My regular con is BayCon in San Jose.  I've gone to all but two or three of those.