I have moved into a new build where the rule is that you cannot make holes of any sort in the walls for the first year. I am thinking of using Velcro to hang pictures and perhaps other things. Does it take the paint off with it when you try to remove it? Is there a way that this can be avoided such as using a hairdryer on it first (my walls are painted with normal emulsion). And how about the stuff that boasts it can hold 7lbs? Is it really that strong?