Basically look for clearance items right now that you want. That is really where the early savings will be had. Otherwise look for items that are "rare" or holdovers from last year.
I picked up a Generations Drift at Cedarbrae for $18 after discount and tax because I wanted one MOSC. Otherwise there wasn't much else.
The two near me don't start until the 26th, but they have a better selection of items. I really want some more Skystrikers, but I won't bite until at least 50% off. Same goes for the clearance Serpent Armors.