Used to think a good tape measure was all you needed. Then I bought a digital angle finder for some tricky trim work. That little screen showing the exact angle saved me from three trips back to the miter saw on the first cut. Now I use it for everything from checking cabinet doors to leveling picture frames. It just takes the guesswork out.
Remember how a bad drill makes you avoid simple jobs. His new one probably turned "maybe later" tasks into quick wins, like finally hanging those shelves. That feeling of fixing things fast is its own kind of weekend freedom.