No extension cords in my shop. When I first got my used lathe and minimill, I rewired the entire little 12 x 16 ft. shop. All lines are in 3/4" conduit. A A 40A 240V service goes into a sub panel with breakers. 120V lines run through wall mounted conduit with 4x4 boxes on roughly 4 - 6 foot centers with 4 electrical sockets in each around all 4 shop walls. The overhead lighting was left on the original inwall (ceiling) wiring. The 220V lathe is hardwired into the 3 phase inverter then to the lathe. It is sooo nice to be able to just reach over and always have a socket to plug in whatever tool or accessory you are working with. Its complete overkill and I love it. I've fought for the last 60 years of not being able to power up a tool / instrument
without getting out an extension cord, and that has now come to an end, at least in the shop. The 3/4" conduit allows for easy wiring additions for
say a bigger mill. My shop is my electronics, woodworking and now metal working home and I bet that within the next year or so, I will have
used every outlet location.