Does seem to vary store by store - our CVS STILL has Halloween junk out at 75% off - and it's not moving. CVS is a VERY weird chain. We have another CVS nearby that the manager just seems to make up the clearance schedule and percentages as he goes along, sometimes the employees just mark down the stuff they want to 10c and seem to buy it up - hard to tell.

If it is a 24 hour CVS I would find out if they are open on 12/25, if they are I would not be surprised to see it go on 50% off that same night.