I hope this isn't too off topic, I was debating putting this up in the mechanics section. Anyways, just wanted to get a feel for how often a regular commuter will yank off the wheels and true 'em up. My commute is 16.5 miles each way, and I've been averaging doing the commute about twice per week (hoping to have it an almost everyday thing by next summer). For the most part, roads are smooth between my place and work, but there is about a one mile stretch where it's got it's share of potholes, and wear and tear. I'm taking off the back wheel about once a week right now, which is definitely overkill, but I'm just learning to true the wheel, so I figure the repitition is a good thing.
So, of commuters who go a fair distance, how often do you true your wheels? Or do you just have your LBS do it periodically?