& by my own experience:
Leaf Vac - Electric tool to accumulate minimal amounts of leaves and vast amounts of dog waste into a permeable cloth bag being held tightly against your torso.
Leaf Blower - Electric or gas powered tool used to efficiently move fallen leaves & lawn debris from open areas into all flower beds, walkways and stairways.
Shop Vac - Electric tool to counter the effects of Wire Wheel listed above.
Chop Saw - Gas powered cutting tool used to cut rough door opening in brick or cinderblock walls (end product will be 2.38 inches wider than any common door sizes commercially available).
Dingo - Gas powered walk behind tractor used to knock down fences, scar trees and crush all of your spouses favorite lawn ornaments (some dirt will be moved in the process).
Electric Screwdriver - Same as listed above but enfused with high amounts of testosterone.
Hand Drill - Electric or battery powered device used to create oblong openings in almost any type surface 1/4 inch to the left of where a round hole was needed.
Step Ladder - Personnel launcher.
Things that need to be invented that I need NOW:
Cable stretcher
Negative grit sand paper (fills in scratches left behind by the regular kind)
Hole mover (see hand drill description above)
Upsidaisium (Don't know what it would be used for but it sure sounded cool when Ldub described it).
Gasoline stain eraser