I have a big problem with little bugs coming from enclosure. Cant contain them anymore. I've been spraying my carpet but obviously can't spray enclosure so I want to clean it all out with my shop vac and just use top soil dirt for now. Problem I live in a small town so we're can I order it cheap? I was thinking of calling walmart and making a spetial order n a bit. Because there its like 2 to 3 $ a bag. Any ideas would be greatly appreciated. Thanks