The failed garage cleanout is a summer tradition: everything dragged onto the driveway at noon, heat index arriving by two, everything shoved back at dusk. The successful version sorts in place, in zones, early — and ends with a truck taking the junk fraction away.
Quadrants, finished one at a time

Divide the garage in four; complete each before touching the next. Within a zone: keep-here, belongs-inside, donate, scrap metal, haul. Finished quadrants stay finished, and the visible progress carries the project through the hot part of the afternoon.
The shelf that can't ride the truck
Half cans of paint, pool chemicals, old gas, solvents, propane bottles — every Round Rock garage has the shelf, and none of it goes on a junk truck as-is. Dry latex paint into solid with hardener; stage the rest for a household-hazardous-waste collection. Segregating it early keeps loading day simple.
Contain the memory boxes
Kids' art, inherited tools, the box labeled 'misc photos' — open one mid-sort and the afternoon dies there. Assign sentiment a single shelf and a separate evening; today the garage gets finished.
The truck that makes it real
What survives the sort as true junk — dead mowers, warped plywood, the clothes-rack treadmill — loads out in under an hour, and Texas garages get one bonus payoff: the car parks inside again before summer, which every Round Rock commuter's steering wheel appreciates.
Done means the car fits
Quadrants finished, chemicals staged for the county collection, sentiment boxed for its own evening, junk on the truck, floor swept. That is the whole definition of done — and in a Round Rock August, the shaded parking alone repays the afternoon.
Steep pile, heavy items, or years of accumulation? Photos at booking size the crew right the first time.