bearsearch, I do the germination process in the bathroom, perfect place for them. Temperature is kept 65-70 deg. By not using bottom heat they don't dry out so fast. Like Lorn I wait till one or a couple come up then move out to the lights in a room that I don't heat at all. Typical winter temperature in there is around 55 deg. With the exception of the bathroom, I keep the whole house coolish in the winter. Unlike Lorn, they stay under the lights for most of the summer. In the fall, I have two choices-- pot them up and put under the eaves, or leave in baggies out on the covered front porch. That place is totally occupied right now!
