I've been thinking about purchasing some Flex Seal to have around The House. The commercials make it seem pretty good but then again so do all of the commercials for the As Seen on TV products. I've read a few articles about it online but I just get the feeling that they're paid reviews so I just don't know. I don't currently have any specific need for it but I figured it might be Handy to have around the house in case a pipe leaks or a shingle comes loose or something along those lines. I have a few questions for those of you who have tried it:Is it pretty easy to use?Is it actually waterproof?How many coats should you use?Does it really work?What wouldn't you use it on? I know that seems like a lot of questions but I just hate spending my money on something that doesn't really work. I'm on a tight budget and always looking for a deal. I figure if this stuff actually works it might prolong the life of some things or help me make minor fixes thus saving me money. Thanks!