surpip
1 ton status
i mounted this in the ceiling, now i have 14 feet of cord that will reach anywhere in my garage.
cost: 25 bucks and a little time
cost: 25 bucks and a little time

I use it most often for an extension cord, but it can't take many amps unless it is fully extended. With it still partly coiled it can over heat too easily (don't ask me how I know).