I do not understand your comments to be male-bashing. Some men simply have very high (and often unwarranted) opinions of themselves. When these men are in positions of power, the problems women face may be exacerbated.

What I have seen some women do is to bring the man's wife into the conversation to remind him you know he is married. Sometimes referring to your husband or significant other conveys the message you have no interest in the man that is being problematical.

One receptionist put a sign on her desk informing visitors that a smile is not an invitation to ask her for her phone number. Her supervisor made her remove it.

For me the crux of the problem is the inequality of power. In my experience, women are quite adept at letting me know when I overstep boundaries. The problem is more delicate when your boss is making the advances. If the boss is a jerk there may be job-related repercussions.

Good luck.