Shower leaks , please help with ideas

I am by no way a handy person, but wanted to mention that when I bought my house almost 2 years ago, I had water dripping in the basement. Turned out to be the soap dish in the tiled wall needed re-caulking. Did that but ended up putting in a tub surround. Another leak happened last year, and I called a plumber. Turned out that the shower door track, where it meets the frame part on the wall needed a little bit of caulking. The water was getting in where the metal track met the metal frame. Such a simple (and tiny) thing that I would never have known or thought of. No problems since!

thanks for the input.....

im going to do a detailed inspection of the shower and chalk up any holes. While I'm at it, I could redo the grout on the floor tiles, I messed them up when I first did that a few years ago.

anyone know whats the easiest way to remove old grout off the top of tile. Should I buff it out?

thanks