Super good lighting is a must!!!
I don't like going into a shop and having to drag all the fabric I'm interested in - to the nearest window - or outside to see the color.
Inspiration - lots of samples.
Classes - different times to offer them.
Friendly staff!!
Keep in mind that you have the business to serve your customers, not just what you like.
Different threads on hand. It's hard to decided what you are going to quilt something with, so I like to have a couple of options.
Well, that should give you a good start on any changes you need to make.
Good for you to go for it!! Sometimes it takes time to do all that you want, so for you - be patient and listen to your customers.
Best of luck in your new adventure!!!
You go girl!