If you carry daily like I do, make sure you clean your stuff every one or two weeks. I carry my Ruger LCP and a spare magazine in my jeans pocket almost everyday and it accumulates a lot of lint. This was taken after about a month of carrying this spare magazine.
I know a lot of you don’t really care about cleaning guns, but do check it once in a while to make sure that nothing will hamper it’s operation, especially when it comes to magazines for a semi-auto, as it is widely known to be the primary source of failure.