Let's get creative, Jellies...what can I do with all these empty cat litter jugs?

Store small things in them, like nails or papers. I’ve been meaning to use something roughly the size and shape of that to make a portable water filter by slipping in a ceramic filter element.

Clean them out thorougly then use them to store drinks, alcoholic or otherwise. Works great for flying.

You can use them to plant vegetables or herbs in. Just drill holes around the side very close to the bottom for drainage. Put some gravel in the bottom to help drainage. Fill with potting soil and plants. They make spray paint for plastic and you can use that to cover the label.