I usually don't take TP if I don't plan on spending the night. If I go canoeing, I've got a bag w/ TP, some wipes, a small trowel, trash bag, and some disinfectant stuff. Especially in the winter when taking a bath is more painful than it's worth. I HATE getting a chaffed butt. For some reason I seem to be prone to this, so I want to make sure I enjoy the rest of the trip without having to alternate which cheek to sit on.
In my "bag", I've got a small zip lock bag w/ chap stick, small bottle of disinfectant, 2 individually packaged wet wipes, tiny bottle of Dr. Bonners soap, and some sun screen/bug repellent. That sounds like a lot, but it's all very small, and some "luxuries" that I'm willing to pack around.
If I'm camping with more than just my family, I bring a big bottle of disinfectant. I know how many family cleans there hands after giving back to nature, but I don't know about anyone else. So, instead of spying on people while they make a deposit, I'm just anal about them using the disinfectant when it's time too eat.
I'm pretty far from a clean freak, and I really hate the disinfectant stuff. But I get over that in the bush, as I don't want to get sick.
Anywho, finding the individual wet wipes has been an amazing thing!