While preparing for our trip and reading all the tips I could find, I came across the tip about getting the dish wipes for washing out the refillable cups or anything else you might need to wash. I thought that it was an excellent tip and set out to try to find them. I looked in every store in my area trying to find them, but could not. Finally I decided to try to make my own. I got some thick baby wipes and laid them flat on the kitchen counter. I squeezed on some dish soap and left them to dry until the next day. When they were dry, I put them in a zipper top bag. It worked perfectly and I was able to use things I already had around the house!