Here's an idea I use. Ya know how you hate to wait for it to run down to the tip when it gets low. Well, I store mine upside down. I made a little holder out of 35 mm film canisters screwed to a piece of wood. Then it is always at the top ready for use. Ya have to watch out on hot days, though. It will pressureize (yep, I flunked spelling) and you'll get more than you want. Check out the pics. Just my two cents.
John