A slump in sales is usually expected right after the holidays.  My store helper is complaining she gets bored at the store because there were only a few customers.  I told her to take it easy and give them time, they'll be back for sure.  ;)  I was also at the grocery yesterday and noticed that a lot of people were giving away business flyers.  Flyers usually help boost the sales especially those that are well-thought of and nicely printed.