Reading the description, I felt that waiting for the overloaded page to load was going to be a waste of time. Having seen the video, I am contemplating tossing him some cash.
Drag, think... doh! wiggle, store. Dig, dig, find, unstore, drop.
That wiggle makes all the difference. Come to think of it, I might unconsciously wiggle things while I'm trying to remember where I meant to drag them to.