This may be an old topic but I am too lazy to search for it.

Do you have an item that has been a game changer for you in pursuit of woodworking excellence. It can be something you purchased or built or found in the trash. It can cost anywhere from free to $1000's. Please refrain from value judgement comments like "too expensive; not worth it; etc". To someone its worth it. I am just looking for inspiration and ideas. Please expand on how or what you accomplished that caused you to say "Wow, this is a real game changer".

I will start it off with some game changers for me.

1. self centering drill bit - I was trying to mount a piano hinge and each screw seemed to try to pull it out of alignment. I bought the bit and re-drilled all the holes. the installation was perfectly aligned and all the screws centered and flush.
2. Sawstop industrial saw - I cannot even begin to express the magic of a great tablesaw.
3. Festool RO sander with dust extractor - sanding without dust. I didn't even know this was possible. Prompted by Leon "Bob, you gotta buy one of these"
4. Veritas saddle square - easy transfer of marks around the sides of a piece.

Bob