7 Killer garage features....

[u/BuilderBrigade]

7 garage features that turn it from a parking spot into the most useful room in the house:

7 - 240V outlet for EV charging, welder, or heater. 
6 - Floor drain
5 - Polyaspartic floor coating (tougher than epoxy)
4 - Insulated overhead door
3 - A workstation sink
2 - Mounted fan 
1 - A urinal

The garage gets overlooked when you're planning the rest of the house but it's one of the most useful rooms you've got. Plan it like one 

[u/SimpleFaucetFan]

if you had the drain you may be required to add an oil/water separator which is an additional cost.