Easier way to remove tow hitch.

I bought a tow hitch to put a carrier on the back of the vehicle for long trips where we might have 1 or 2 too many suite cases to fit inside. We're having a little one in November and the strollers, play pens, and other misc baby items add up fast. I don't want the hitch on the vehicle for every day driving which will be 99% of the time. It seem to me that if I could get the right size treaded studs I could just lift the hitch into place, tread on 4 bolts, and be done without having to take off the exhaust suspension bracket.

Has anyone found a faster or easier way to put the hitch on or take it off?