For starters, I buy cheap plastic, one size fits all, disposable plastic gloves. When dumping, I dump the black tank first, followed by the grey tank. Then I rinse the slinky out with a regular green yard hose while the slinky is still attached to the dump station. I carry two slinkys, two green and two white hoses in separate large plastic boxes. Rarely need the second hose, but if you're a foot short...
I fill the fresh water tank with a white hose, but I buy gallon jugs of distilled water for coffee, cooking, drinking and the cup that holds my teeth at night. :) In short, anything that goes inside of me. The outside is waterproof. Plenty of space since I got rid of all the tools I used to carry, starting with all the metric stuff. I now carry a couple of screwdrivers, a couple of pliers, an easement tool (hammer) and a couple of credit cards. They don't take up much room.