More often than I have needed to, and not as often as I would like. Normally, if I leave the house I am carrying. I have to keep it locked up while at work, but other than that, I have it. The Why is easy. I have it, it doesn't weigh much, and I might find it useful someday.
Unfortunately I only have time to go to mostly work and school, both of which do not allow guns. I answered accordingly, but would like to carry it where ever I go.