Public Service Announcement to ALL!!!!!!!!!Cutting into your garage slab is a great idea in most situations to make room from your lifts (i.e. older home). However, in certain parts of the country many newer homes, within 10-15 years, are built on Post Tension Slab foundation to eliminate movement and cracking. You will find these types of slabs mainly where seismic considerations must be taken into consideration. If you saw into a Post Tension Slab and cut a cable it could very dangerous
(like death) if the cable comes out of the slab during the process. Know what you are doing if you have a newer home and check with someone who if familiar with home construction in your area.
Other than that.....I too have thought about the idea and it makes perfect sense to me!