Original post by: rdklinc ,
I've never used one, and never witnessed damage that could be attributed to not using one. With these issues that are so debatable, the answer is usually that, no, it probably doesn't matter. If it did, the evidence would be far clearer. I mean, I'd advise against installing shag carpeting in the area where you repair computers, buy beyond obvious stuff like that, I'd say you're fine.