First, offer closing costs without lowering the price. Your Realtor should be suggesting this.
When you lower the price, the buyer still asks for closing costs - so offer them now. A reasonable figure to use is 3-4% of the sale price. Some buyers won't be allowed to take more than that.
If the house is priced wrong, the closing cost approach can backfire because the appraisal doesn't make value. Agent incentives can work, but your problem is the Thanksgiving lull. From now until New Year's not a whole goes on in the market. It's not dead exactly - it's just few people want to move or to make deals. You know, the Holidays.
Gift cards can get showings, but what good is that if the buyers aren't seriously interested? Look over your feedback reports and see what they've been saying. If it's the purple carpet in the foyer, do something about that first, and then have your agent contact all those prior showings to see if there is interest.
If the problem is the layout, carefully inspect each room to see that a person can walk through the house without sidling by the statue of David you have in the hallway. Clutter can result in poor showings. If it is just the layout or a garage conversion you did, you're stuck. Only price will cure that - it has to be cheap enough for the buyer to overlook the bad design.