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.
Reading glasses come in two main styles: full frames, in which the entire lens is made in the reading prescription, and half-eyes, the smaller Ben Franklin style glasses that sit lower down on the nose. Full reading glasses are suitable for people who spend a great deal of time concentrating on material close-up. If you try to look up and across the room through the reading lenses, everything appears blurry.