I was a little bit disappointed when I found out the total was a bit short of what the header proclaimed, but you should still check out 1001 things to do with liquid nitrogen

LN2 also works great for sweeping and cleaning hard floors such as concrete or wood.
Get a couple liters in a container, and dump it on the floor in the direction
you want the debris to travel. It picks up everything in it’s wave and if it hits a wall,
the wave will boil off and deposit the junk there. Now all you have to do is go
around the perimeter and sweep up the clutter.