I only wear a UK at work, because our dress code says we have to wear khaki. In any case, it's probably a good idea because I work in a bar/restaurant, and the kilt's pretty dingy after a year of working there.

Other than that, I don't worry much about what I'm wearing. I have a second UK, but I've also worn my wool "tank" while woodworking, painting (though this probably wasn't the best idea), and hiking and backpacking. I did wear a casual kilt (a four-yard Bear Kilt) for my Appalachian Trail thru-hike, but after seeing how well it survived the trip (good enough for another 5,000+ miles of hiking, in my estimate) I wouldn't feel bad about wearing a wool kilt for a long, abusive hike like that. Heck, I spent almost as much on my sleeping bag as I did on my tank.

I think what it comes down to is, now that I own an expensive kilt, I don't think about how much it originally cost me. Sure, I'm cautious about it, but I don't worry too much about doing just about anything in it. I suppose if I had two "tanks" I wouldn't worry about anything at all. I'd save one for the best occasions, and wear the other for rolling about the mud in.

Andrew.