One of these:
http://www.screwfix.com/p/karcher-1000w-17ltr-wet-dry-vacuum-cleaner-240v/91431
Its a garage vacuum, you can plug power tools into it and it turns on when you start the tool. On the few occasions I’ve used it in the house, its knocked socks off the regular hoover. (I’m not sure why I’d plug the iron into it, I suppose you could switch it to blow to help dry the clothes 🙂 )
Only advice would be to get the bags, they are huge and last ages, and it saves the K&N style filter from getting clogged up.
(I suppose the downside is its a bit tall, and the cord is only about 5 metres long)