You can replace plastic anti-scratch pads on the bottom of table legs with adjustable anti-scratch pads. That means no more cutting the legs to get them the right length.
A great tip: cut two very tiny pieces of a cedar shingle (the kind you always use as a wedging shim anyway) and carry them in some little pocket holder. You will never find your self stuck with the wobbly table at a restaurant again. Just remember to put them back in your pocket after supper.