I have been looking for a retractable extension cord with a single plug on the end that I can use for the block heater on my truck during the winter. All I have seen thus far is triple tap set-ups. Does anyone have an idea where I can get a single receptacle retractable extension cord? If all else fails, I guess I'll have to cut the end off of the triple and put on a single. I just want to be ready long before the white stuff and old man winter. Any thoughts?