I've got my first tour coming up in a few weeks and I'm nervous about one thing....I get urethra irritation really easily and almost always after riding about 30 min, I feel like I have to pee. and then pretty much every half hour afterwards, I do have to pee. ugh. I'm trying some new saddles (all with major cutouts) and new underwear (the "breathable" kind). Anybody else out there run into this problem, and how do you handle it on a tour?