First off i cleaned my cartos by boiling them then blew out the excess water after that i wrapped them in paper towels but into a small zip bag and put a rubber band around them to hold in place and finally I rubber banded them to a blade on my ceiling fan , yep the ceiling fan. Made sure they were very secure and turned the fan on high for about 5 to 10 minutes. Afterwards the cartos were nice and dry and to test it out i filled one up using the condom method and repeated the process but for like 10 seconds. With condoms on both ends preventing me from losing the liquid i just put in. Topped it off and works fantastic. Yeah I was bored and figured it couldn't hurt but hey I figure i can find at least 15 mins a weeks to clean and fill a couple days worth of cartos. Don't know if anyone has tried this ceiling fan technique before.