Okay, so maybe moving a chair to clean under it isn't exactly revolutionary, but if you flip it carefully forward on its axis, then it's super-easy to get it back to the exact position it was in before you moved it. Before I started flipping my chair over, I sometimes spent so much time trying to get the feet back in their carpet grooves that it was hardly a time-saving technique. This way, it's a quick matter of "pivot forward, vacuum, pivot backward."
Added bonus: If anyone has been eating carelessly in the recliner, and it is full of crumbs, flipping it forward will dump out most of the crumbs, saving you even more crevice tool time.