My Awesome Auger seems OK. It's actually better constructed than I anticipated from reviews. I took it to my tool lending library and they said I should be careful not to burn out my corded Craftsman drill when using it. He said I could make a series of 6" holes, pour water in them and then deepen them to minimize strain on the drill. I've already used it to remove/control invasive bamboo that continuously comes up in my yard from under my neighbor's fence. I hadn't thought of that when buying it, but it's an obvious use. I have to be careful not to get the corded drill's cord tangled when using it. The drill has a lock-on button, and if it's locked-on it could be a disaster... the cord could be cut by the bit. Also, the drill could burn out when the motor stalls and releasing your finger from the trigger does not shut off the drill if the lock button has been slid into the handle, and that often happens by accident. It happened to me a few times already. Big big caveat.
One of my great tool buys was my Porter Cable Saw Boss. It's lighter/easier to handle than your basic 7 1/4" Skill Saw or equivalent, and you can do 90+% of anything you'd want to do with one. IIRC it uses a 6" blade or smaller.
Maybe my coolest tool, though, is one I made from a motor I bought for $5. It was from a clothes dryer, so they said. From wood I had lying around and parts I bought in hardware stores I constructed a grinder. The motor shaft sticks out on both ends, and on the side opposite the grinding wheel I have a removable arbor to which I can attach various things. With the arbor I can attach drill bits and it works as a horizontal drill press in conjunction with a device I made that keeps the work perpendicular to the bit. Without the arbor I can attach circle saw blades, buffing wheels, circular wire brushes, etc. I constructed an adjustable wooden platform (well varnished!) to use in conjunction with the saw blades that allows me to use this to cut wood, make wooden slats of any dimensions. I made a drill bit sharpener that works with the grinding wheel. This was my first power tool and sits in my work room. Sometimes I take it out into the yard (it has rubber feet on the base) for wood cutting sessions. The motor got to the point where it wouldn't start from a dead stop, so I tug on the grinding wheel to give it some RPM before flicking down the start switch. It works and it is fun to use.