Either I'm blind and I can't find my posts regarding a 1-Day sale for the 23rd & 26th, or some lmod has been deleting them, but (again!), there IS a day-1 sale on 23rd and 26th. The sale has ALREADY gone live:
Dungeon Defenders - 600 Microsoft Points Quantum Conundrum - 600 Microsoft Points Harley Quinn's Revenge - 400 Microsoft Points Mass Effect™ 3: Leviathan - 400 Microsoft Points Raven Strike DLC Pack - 600 Microsoft Points Arctic Strike DLC Pack - 400 Microsoft Points October Car Pack - 200 Microsoft Points
as for the 26th: The Expendables 2 The VIdeogame The Expendables 2 - Full Access and Upgrade pack Real Steel Shadow Complex Left 4 Dead 2 - Cold Stream DLC
Let's see how long this information stays in place....