If you're referring to gallon jugs, maybe you could thread a string or rope through the handles, and tie the ends of it up high somewhere! It'd look like a bunch of rather weird balloons. :)

I keep all mine in large black plastic trash bags in the basement.

pixie's got the best approach... string them like peppers hanging to dry. or run a bamboo pole through the handles, and hang THAT from the rafters.

of course- there is always the question 'how many of these things can I really use?'

I have had to learn to limit myself to 'enough to last me the year' for anything that is a renewable resource. which is fewer than I used to think- my my mom's not just frugal, she's a (thankfully now recovered after years of therapy) depression-era pack rat.

of course, in the search for more storage, I just discovered that the peg board in the far corner of my basement (bought the house in '03) is actually covering up the opening to a crawl space that runs under my kitchen!

:) not weather tight- but a great place to winter the garden bits!

I have to save milk cartons to hold hurricane emergency water every year, so I put them in black plastic lawn bags, and hang them from hooks in the garage.

I just started using tomato boxes gotten from a local produce store to stash stuff. They're all the same size, have nice tops, and stack in a very narrow space, so I love them. I stacked a bunch of them along one wall in my "junk" room and made curtains out of a bolt of homespun fabric (bought at a yard sale for $3) I had been trying to figure out what to do with. Hung the curtains on the ceiling by suspending dowels from those ceiling plant hangers with eye hooks, and VOILA! A new storage space where everything is labeled, and I can actually get to it!