I've generally used everything I've taken except possibly the freeze-dried food but that was only for emergencies anyway. I take far more clothes than most people here but I detest doing laundry every night. I'd rather have 3 or 4 days between laundry and carry the extra clothes.

You will undoubtedly take more stuff then you need. In 2005 my daughter and I took cold weather clothes for our ride from Montana to Oregon. We didn't need it. We sent it home in The Dalles, OR (the US Postal Service is wonderful for this kind of stuff ). We need it at the very end - and I mean the very end- of the trip in Astoria. We froze because we had sent all that stuff we didn't need home.

Something I won't carry in the future is bar soap. It's messy and heavy. I hate liquid soap too since it can leak all over everything. My daughter turned me on to facial cloths like these from Dove (this isn't the brand we used but they are similar). You get a whole bunch in a box and all you have to do is add water to lather them. They cut grease wonderfully but you do need more than one per shower. I found that I needed 3 or 4 but they were still cheap, dry and nonmessy.