I've seen a lot about the mini-workbench ("bench-on-bench"), but I didn't really understand what they were good for until I built one. Note that this is for a double-screw vise up front (the so-called Moxon vise). I briefly show how I use my mini-workbench, and describe its construction.
Original blog post: http://galoototron.com/2020/12/26/bench-on-bench-its-on/
The multiwedge planer sled: https://www.youtube.com/watch?v=6aB21q58MkU
My woodworking blog: https://www.galoototron.com/
0:00 The Story of my Mini-Bench
0:57 Capabilities and Features
2:39 Design and Build
4:52 Suitability for Your Skill Level