It seems inevitable to be locked out of one's home, and it did. Fortunately, it was only the bottom lock, I had my mobile phone, and was able to call various friends who either referred me to locksmith(s) in the area and/or searched the internet for ones that are open 24/7 in the DC Metro area. It was a frustrating experience, made more so by the fact the locksmith thought it would be 'easy' and in the end, it wasn't so easy. When he used the 'credit card trick', I thought, "Why am I paying someone to do something I saw in the movies? I suppose that's reassuring that even a locksmith had difficulty entering the residence. He also provided some suggestions regarding locks but after paying $150 to be let in, the last thing I wanted to hear was a sales pitch. I don't know if I would use the provider in the future, unless it's absolutely necessary. If there was a 'depends' or 'maybe' option, I would select that. In the end, the task was completed.