You can pick them up at Target or TJMaxx, Ross, or Marshalls for fairly inexpensive (even better if you can find some with the red markdown sticker, because honestly, who cares if they are hot green or mud brown if you are going to wipe a dirty face with them?) I can get them wet if I need to and add a little soap (Can paper napkins or paper towels do this WITHOUT falling apart or living paper traces?) or the kids can use them dry. I throw them in with my towel laundry so its not like I have to do extra special loads to keep them clean. I save the environment and my money :)
See what I mean?