Quality classes with a sample displayed in the store and online.
Nice lighting including some natural window light.
Offer classes at different times for working and non working.
Friendly, knowledgeable staff.
Coffee area with sit and sew is nice, but not totally required.
Music is fine, but I would prefer no smells. Lots of people have fragrance issues.
Coupons get me in the door. Then I always spend more. Send out via email.
Do offer sales from time to time. Again gets people in the door and makes you more competitive with the box stores.