I use a ratchet strap with big hooks to change tires etc. It's not the best for truing a wheel but serves pretty good for just about anything else and takes up very little room and weighs less than a pound. There's always a tree or something to attach to. Once you get familiar with it you can even hoist it up to chest high to work standing up.
Just a chimp with a gun and an idea we should be free to ride our machines without gettin hassled by the Man.