The lockers are about a foot cubed in size, and are still "only" $0.75. There's at least three sets of lockers, by the MF, the Raptor, and Snake River falls.
As for fanny packs on rides... probabaly not on the Millennium Force. The guy who sits at the beginning of the queue makes sure NO ONE gets by with anything but themselves, shoes, and clothes... "Mam, you're going to have to put that in a locker," "you're going to need a strap or a place to put those glasses," etc.
*** This post was edited by ryangs on 6/15/2001. ***