Does anyone use this feature? I keep a little $$ in my paypal account for ebay etc,, not very much, but just my "mad money" from my sales until I buy something else, LOL. I see they have a paypal money market fund paying some interest,, I figure I might earn a few pennies with it but wondered how it really worked,, something I just read said something about transactions only available on business days,,, so does that mean if I move it to money market that I cannot use it to purchase unless it is business day/hours? Is it a hassle to move it back if I purchase something? how about if I just want to move it to my bank account?