Sales. One component of your profit margin is your sales. Generally, the more coffee you sell, the higher your profit. There are a couple of things you can do to make sure your sales are as high as they can be. First, serve quality products. Second, hire a friendly staff.
Here, Annette Bening is in nerd glasses, those thick black frames that have become increasingly popular over the past 4 years (or so). You can see how her look is instantly transformed from the previous picture, just because of a change in frames. 3 of 19 Show All.
Costco optical is the best. For those of you that don't know, they are consistently ranked #1 in the nation by consumer reports and other publications. Why? Because they do all of their glasses at a single state-of-the-art facility in Washington State. No other chains/local shops can really compare and the quality control is top notch.