How to fix a wobbly metal table leg?

Don't you just hate it when you're sitting at your metal table and it starts to wobble? Here's how to fix that issue in just a few simple steps.
First, identify the source of the wobble. Is it the tabletop itself or is one of the legs not level? If it's the tabletop, you'll need to find something to prop it up with so that it's level. If one of the legs is the issue, you'll need to adjust it so that it's level with the others.
If the wobble is coming from the tabletop, place something under the edge of the table that is closest to the center of the wobble. This could be a book, a piece of cardboard, or even a level. Then, check to see if the tabletop is level. If it's not, propping it up in the center will help to level it out.
If one of the legs is the source of the wobble, you'll need to adjust it so that it's level with the others. The easiest way to do this is to place something under the leg that is too high. This could be a stack of books, a piece of wood, or anything else that is of similar height. Then, check to see if the leg is level with the others. If it's not, adjust it until it is.
Once you've identified and fixed the source of the wobble, your metal table should be good as new!