I'm looking into some wi-fi connectivity problems at a small college campus. One of the things I'm considering is the high concentration of microwave ovens (nearly every dorm room has one), because those can play havoc with wi-fi signals. Another challenge is an odd combination of cement block construction and the wood flooring mentioned in this recent slashdot post (which gave me the idea to ask about the problem here) that was installed after a recent remodel.
Any ideas about how to overcome these challenges? I'm considering bringing in a company to do a professional site survey, but I'd like to avoid that expense if I can as it's just not in their budget.