Yes.

In the old days, there was a slot in the back of the bathroom medicine cabinet you could drop used double edged razor blades in to dispose of them. Since the blades were very sharp, even after they were used, they presented a hazard and somebody who designed medicine cabinets decided that was a good way to get rid of them.

well obviously only if your using veet with it but yeah, they do. not very well though. it doesn't work if you only use a little veet, and you have to really scrape

One can find reviews of electric razors at ConsumerReports. Go under Home and then Health. You can also find reviews at Gizmondo, BestCovery and TopElectricShavers.