I used to work at a LQS & so far the other ladies have given you some wonderful ideas. The shop I worked at also carried yarn & that was a huge seller. Just realize that it is hard work to have your own business with lots of long hrs and not necessary a lot of pay (at least for the 1st few yrs). However, it is definitely doable. One thing I would highly recommend you do if possible is work at another LQS for at least a yr. That will give you a good feel for how the customers can be, what sort of inventory they prefer the most, etc.