Glass Shower Door Latch - As it pertains to maintaining your house in tip top shape, nothing can be more annoying than the usual sliding glass door that won't slide.
The number 1 reason your sliding glass door won't side is because too much dirt and debris have clogged up the course of your door panel and the wheels. That is not a hard fix, but it is best if you have another person present to help you because most sliding glass doors are rather heavy.
You can carefully examine the track and also the wheels after the door is on its side. Mostly, you will find the wheels are full of soot and debris, and the track is, in addition, probably quite dirty. To clean the wheels, use compressed air and needle point pliers. Be careful to pull every last hair out from the wheel bearings. It is wise to be diligent in this step, and therefore you do not have to make a habit of this procedure.
While you're at it, clean up all the "mating-edges" of the doorway. This really is where the sliding door and some other surface of the door frame meet. A general rule of thumb will be to simply wipe down anything that looks dirty. Remember, even if the dirt is not always on the track itself, it can eventually fall to the path causing your door to require another wipe down.