There is really no end to the amount of money you can spend on tooling your wood shop. These days there seems to be a tool for everything, which makes it very tempting to fill your shop with them.
Router bit cabinet
Installing crown moulding - part one
14" Band Saws
Refinishing wood floors
The Shoulder Plane
Simple Cherry Finish
Reversible mortise jig
Bench Dog Router Station
Rockler Taper Jig
A bird, a daughter & a garbage can
A circular saw can make crosscuts and rip cuts, and bevel, angled and compound cuts.
I gave a one-on-one lesson to a beginner woodworker the other day.