Good advise! The alcohol dip works well for things that don't have optics. The doublets in optics can come uncemented with alcohol.
Another way to dry out electronics, especially things with optics is with a food dehydrator. Don't let the heat get above 120 deg. F. Also by an air duct from your air conditioner. You are looking for really dry air. Of course if you happen to have a bell jar and vacuum pump, that's yet another way. <img src="/forums/images/graemlins/grin.gif" alt="" />