I still have all of the ones I've done for the 100 Challenge, I'm not going to trade them just yet, I actually want to prove to myself that I've done all 100 (how sad is it that I have put them all in numerical order in card holders, and I'm waiting to see how I fill each page) then when I've got all 100 done, I'll consider starting to trade them.. that's sad!
If it's sad, I'm right there with you Selise

I set aside 11 pages of card holders in my ATC binder and it feels nice to see them filling up!
I've traded one of my 100 theme cards already, but since I'm keeping a folder on my computer just for the scans of them I can still go look at them all.
I need to get off my patootie and get back to working on these! I took a break to make some coptic bound sketchbooks and try my hand at some of the 1 x 1" squares. Fun stuff! I never tried any paper stuff really except a couple of books before I learned about ATCs.