I use "Dry Guy Circulators" (google it), which I bought at TJ Maxx last year for $5. Works great - not hot, just warm.

I killed those after two months of use. I wasn't impressed (my last booties, Burleys, which were cheaper, lasted a year or so). I'm probably going to try Showers Pass's booties next.

Another vote for the crumpled newspaper. I grew up on a ranch and drying your soaked and muddy leather work boots in the winter was vital. We'd set them by the wood fire stove, but close to any heater vent (not too close) will work. Even without a heater vent, just stuffing them with newspaper will dry my clipless shoes overnight.

i need a decent pair of booties but i want to wear them over my sneakers...can anyone recommend some decent ones? i was thinking of just going with toe covers but wasn't sure how they would work with clips and straps...any ideas? thanks

Another vote for newspaper at work, then newspaper plus fan at home.