I feel your pain. There was time from when I got my workshop under roof and enclosed to when I had power run out there - and that was twenty plus years ago, so it was before cordless tools were an option. I had two 10ga extension cords run out from the house any time I was working out there. After getting the panel in and the cable run to connect it I realized I should have done that much sooner even if I only had a couple outlets wired up directly below the panel.