I got two little coffee tables with shelves to put the cage on top of (no single table fits my cage - way too big or too small). I tied the cage down so that it won't slip off when the cats jump on it.

I always found using the cubes as a stand to be unwieldy and annoying (it was fine at first, but over the years I'd have to take it apart and put it back together, even though I hold it together with zip ties. Maybe my connecters are just crappy...). I decided to put this newest cage on top of a table instead.