There is a lot of stuff on line if you Google 'small shop ideas'.One thing I did, having seen it on lots of 'shop' websites, was to have as much as I could on wheels.
This includes, my bench, my table saw, shelving units for bulky storage, storage draws, and some specially made tool stands with a tool on top, and another stored underneath. The wheels are 3 inch swivel and locking mostly. This allows me to wheel stuff out, and lock it down in the middle of the floor when I need to. My bench is about 2.4m long, but only about 60cm wide. This give more space back to the garage. For bigger pieces I have an assembly table (top) that sits on the bench.
It is also worth getting a shop vac, like a Henry, but about 4x the size. There is good suction and no bags to mess with. If you can, have a sink installed, with instant water heater.
In a small one car garage, with a 2.5m ceiling, with the big door permanently closed, I have
- [size=78%]bench (2.4m x0.6), [/size]
- [size=78%]tool trolley with mitre saw above, 12" planer below.[/size]
- [size=78%]tool trolley with 6" jointer above, router table below.[/size]
- [size=78%]table saw (on trolley)[/size]
- [size=78%]2.6m x 0.6m shelving unit (on wheels)[/size]
- [size=78%]two filing cabinet sized drawer sets (plastic) mounted on a trolley.[/size]
- [size=78%]assembly table flat against a wall[/size]
- [size=78%]drying rack (collapsible) big enough to 24 pieces up to 2m long or 0.6 m deep[/size]
- [size=78%]shop vac,[/size]
- [size=78%]oil heater (for when it gets too cold for varnish to dry)[/size]
- [size=78%]double sink[/size]
- [size=78%]overhead timber rack.[/size]
Lots of modular shelving that moves if needed.
still got room for more.
For lighting, I have two rows of strip lights. Each row 0.5m from the wall, this stops you working in your own shadow.
For power, I had an extra fuse box put in the garage, and have 7 sets of quadruple sockets installed around the walls. I am never more than 2.5m from the nearest socket and so don't have any trip hazards from trailer sockets/power strips, useful when struggling with 4'x8' boards.