I have this same issue; my garage has no power, as of yet.
I have a huge pile of stuff to put a 200A service in the garage, but I'm going to have to deal with utility stuff.
My 120V compressor is nice, but it won't last.
My favorite tool of all is being ambidextrous.
Some things are right-handed, some are left-handed; being able to do both rules.
As a bonus, when working on a computer, I can use either hand as a mouse hand, no prob.
Year before last my garage suddenly lost power. Dug up the line to find out it was indoor romex buried about 3" deep around my driveway, and it broke where it goes into the house because they poured a concrete step over it, and when the ground froze, thawed, froze, thawed it broke the romex. So a lot of digging and some underground PCV later, I have a properly buried outdoor rated power line on it's own circuit breaker run out to the garage.
Really not that hard to do, just make sure you're in conduit, and at least a foot deep underground. Keep it in conduit using elbows, etc until it gets into the garage and your house.
97 Thunderbird LX (The GT Bird)
PI Swapped NPI motor with some port work on the heads, PI cams, 80mm MAF, CAI that feeds from fenderwell. Jmod, 3.73:1 TL in Mark VIII carrier, Mark VIII aluminum LCAs, 93 Mark VIII driveshaft, PBR brakes (soon to be Cobras), 18x9 wheels, 255/40/ZR18 Tires, Front and Rear strut/shock bracing, GR-2 shocks, Eibach 1.5" springs, 1989 SC front and rear sway bars.