The first thing to do is spray their preferred breeding grounds: potted plant soil. Using a mixture of one tablespoon of Ivory liquid hand soap with a gallon of water, I'll lightly spray the potted plants with this mixture. This will put an end to that habitat. Also, its important to look around for anything decaying or rotting; with this warmer weather, sometimes fruit ripens quickly and discarded apples and banana peels make for a good meal for the little buggers. So we'll have to keep more strict about keeping our office trash cleaner. We're not 100% sure, but we think they might be slipping through into the home via the window air conditioner vents, so we'll have to check those and keep them closed when not in use.
The last trick I've read numerous times is just leaving a mixture of apple cider vinegar with the soap water solution (or even beer, the lil' drunkards) in a trap similar to the one we posted about for wasp capturing.
Anyone else out there have some tips of their own?