Hi P.,
I use the Deb Myers bags too. I vaguely remember there being a warning about washing the bags. Maybe you can find your paperwork for them and double check. We don't want to wash out whatever it is that makes them work. Yes, the are pricey and we don't to discard before we have to. I rinse mine and if really necessary, have used soap as well. I just think we are not suppose to.
To your real question:
I place mine over a pop bottle to hold them open and they dry overnight. Also IF I have several and don't want them sitting around during the day, I have another silly thing I do. Silly, but it works. I have a window box fan handy, it's just in a closet all the time. I will bring it out and use clothes pins and clip the open bags to the grids of the fan. Turning it on low dries them out real fast. I check on it a half hour later, it's done and I put it away. Using towels is not consider health safe, so I figure the fan is a bit safer.
Here's another tip:
The bags are suppose to be used only for one product. So if you use it for lettuce, the bag should only be used for lettuce from now on. At the top, I mark the bag with what is suppose to be in that bag. Using lettuce as an example: When I run out of lettuce, if the bag is still clean, I just keep it in the refrigerator drawer anyway. It keeps the bacteria issue from being an issue longer.
Hope this answers your questions and helps you out.
C.