well i don't do it exactly regularly, but as often as we feel like. it's fun and sexy for both of us, and it's very arousing.
both of us would rather i danced for him than some random druggie stripper in a sleazy club. i'd go to one with him, but i don't see the point in him going without me.
i do it as often as i feel, esp. when i just bought new lingerie. but mostly, i let him go out and buy his own. sometimes i go with him, other times, i have his friends take him. spices things up- not swinging, just a little entertainment.