Lots of outlets, on all the walls. My sewing room is about a quarter of my basement, so the size is great, but I have only two outlets. One is in the rafters, so I have a power strip hanging from the rafters for my iron, which works well cuz I can see the light on the strip switch from the doorway and know if the iron is still on.
I use the plastic 3 drawer stackers for my fabric, organized by color or holiday in each drawer, and I can see through them but they don't get dusty. Big bins for my batting and fleece.