Not only are concrete walls boring to look at, but they’re also difficult to decorate — especially with all the rules that come with living in a dorm. At most schools, you’re not allowed to put holes ...
And it won't cost a lot. £1, in fact, could be all you need. The team at The Underfloor Heating Store is bigging up the £1 tin foil technique - although an inverted, cleaned crisp packet might work ...