i'm having a hell of a time washing my transparencies every couple of days, and there's got to be a better way! i soak them in the tub with hot water and dish soap for few minutes and then have to lightly scrub each one individually, rinse each one individually, and dry each one individually [as they won't dry if you simply stack them]. i can't just rinse them because the heat of the overhead cakes the ink on. i've also tried cleaning them with paper towels and cleaning solution but that takes forever too and you waste so many paper towels! aaand, i don't want to toss them because a) they're supposed to be reusable and b)who wants to buy a new box every week?!
it's driving me crazy. as a math teacher, i write a heck of a lot and i have no other options but the overhead, as i have no chalk/white board [i have walls covered in cork-board... don't ask.]