We had a two-week slowdown in the beginning of August but it didn't last. Our numbers are up higher than usual.
We thought maybe it was families bringing the kids back to college.
Find the products that everyone is looking for. This may differ in your area. Even on slower days, these products help to bring us over the top.
In a recession (there is no current threat of one at the moment), things will slow down on certain products. Larger more expensive products will slow in sales. This should be the time when you become more competitive against other shops and the internet.
Most importantly, look for ways to drive new customers to your shops. There are days that I care less about the final count than I do with new customer sign up.