I'm using three strands of worsted-weight cotton. The front is cream, pink, and orange, and the back will be pink, variegated pink and white, and orange, because I don't have enough cream to finish another square. The effect is much the same, anyway. :D
The squares won't be big enough on their own to meet the tote bag size requirement for this swap, so I think I'm going to end up doing some picking up and knitting, and I may use this opportunity to try the "belt weaver" thingie I picked up from Jo-Ann on a whim, to see if it will make a decent strap, too. This swap probably won't go out this week, but hey, at least it will contain an awesome bag. ;D
(Unrelated, but just in case my swap partner is watching, I haven't forgotten my Spin to Knit Orphan Handspun downstream partner, either! That package will probably go out next week, too. ;D)