I used to be so excited that I found a way to wash my overhead slides on the weekend. I'd put them in the sink with water, and then swoosh them around one by one and rinse of the excess ink and then put them in between pages of a large phone book.
I used to be so excited ... until it started taking about 45 minutes or so every weekend ... that's when I started slacking off on the job and cursing the slides.
It finally clicked in my head, and what I'd seen many others do and I hadn't been "ready to learn yet" ... well, I finally got it. So last weekend I bought a small spray bottle (5" high or so), and confiscated some of my husband's tired old holey socks, and this week so far, right after each class, that's me. Spritz, spritz, spritz. Wipe, wipe, wipe. No weekend slides. If my calculations are correct: about 5 slides per class x 5 classes x 5 days each week = a bazillion slides I now don't have to dread cleaning each weekend. Bring it on.