Circle jig - been trying to figure this out for a specific project for some time now.
Klappschleifscheibe Caddy Holz Plan Werkstatt & Jigs Geschäft Schränke, Storage & Organizer Werkstatt & Jigs $ 2 Shop-Pläne
perfect miters every time - pro tips for making perfect miters
Adjustable Outfeed Roller - the roller is a piece of PVC pipe
Route dead-center dadoes - Similar idea might work for circular saw guide so I don't always have to measure back 5-1/16" from where I want to cut. | Pinterest
DIY Wall Mounted Panel Glue Up Press - Panel Glue Up Tips, Jigs and Techniques | WoodArchivist.com
Taper Jig - Could Use to Cut Wedges Too:
Scottish furniture makers : high resolution pic of Chest of Drawers
Sikiju shelf by Arms.