First the garage is one of the worst places to store gear, or anyplace you that has gasoline sitting around. The vapors of gasoline will brake down, and dry out rubber and silicon. If you’re going to hang your regulator, be certain that you are not putting any stress on the hoses. This will cause either a high pressure hose to split and rupture, or a low pressure. I have see both of these hoses go at various times.
Your looking at long term storage, store you BC after a good inter rinse, completely deflate it and fold it up real nice, do everything like wise. I like the rubber maid boxes because they stack very nicely and can hold all my gear with a little room to spare. I have also used a gear bag, its up to you!
If you looking to store your gear short term just about any method will work just remember long term or short the best way is in a cool and dry place