A couple of projects that I am working on:

Caulking a shower.

1) What is the best way to remove the existing caulk?
2) What is the best caulk to use? Silicone? Siliconized latex? I had
a mold and mildew on the old caulk and want something more durable.

Holes in the grout on the shower walls.

How do you go about fixing this? Is there filler you can buy to repair
them or is it something on a larger scale?

Thanks!