riddle me this, riddle me that

New feature to our blog (if I can remember about it lol)...I'm going to post a riddle and I want you all to THINK about it. Try and figure it out WITHOUT cheating by looking it up. First one is...

Who makes it, has no need of it.
Who buys it, has no use for it.
Who uses it can neither see nor feel it.
What am I?