I am planning on having a weapon with a Hollow Pommel that I will hide things in such as poison. Anyway so I was planning on using a Glove of Storing to hold my weapon and it's contents, but I want to make sure that if I put something in the Hollow part of my weapon then when I store it in the Glove of Storing it will also store what is in it as long as the total weight doesn't exceed 20 pounds.
Yes.
I think it would work. And I'll mention the Weapon Tattoo. Same cost as the Glove, but it doesn't take up the hands slot. If you want to be able to store the weapon quickly you want the Glove, but the Tattoo can recall the weapon with a swift action so that isn't usually too bad.