Thank you all!! I really appreciate the advice, WILL bring bug repellent, and Flying Scot, why I didn't think about the vacuum packing bags for this trip, I don't know -- I just used a couple to pack the car for my spawn's college dropoff! That's a great idea (and doh on me!); thanks!

Re: bike shoes, I don't have clips, just regular ol' pedals, so whatever shoes I wear are good for general use, too. (And my saddle is a horror! I'll switch it out some day, but not before this ride.)

sfa and divingbiker, it came to me last night that I have rain ponchos packed away with camping gear. I'll tuck one of those in someplace.

The rear trunk I ordered has been shipped; once I have that, I'll know exactly how much space I'll have. I'm thinking that after I've gotten someplace and showered, the shirt I'll wear that evening will be the shirt I bike in the next day. I'll take old underwear and throw it out along the way (just so I can say, "Drat! I left my underwear in [name of town here]" at parties), and check into where I'm staying midpoint. A washer and dryer would certainly come in handy about then!

There's no getting around having to wash out a bra each night, though, so if anyone reads a report of a wide slow woman flying a boobie-holder flag as she travels down the towpath, that'll be me trying to ensure the thing dries. Heck, if there's a tailwind, I'll use it like a sail to propel me forward!