There are a few things that I do not like about my local shops so I will offer those to you as things to avoid:
1) Scuffed, dusty wine kits. If it looks as though it has been lost in the store room for two years, I do not want it. Rotate the stock, keep it fresh, keep it looking fresh and be prepared to bite the bullet and discount the kits that reach end-of-shelf life.
2) Unwillingness to make a special order for a kit. Both of my LHBSs stock wine kits from suppliers who include Pinotage kits in their range. The stores do not stock it because they do not believe that there is enough demand. I have specifically asked in both stores if they would be able to order these for me but neither shop can be bothered.
3) Tiny quantities of cleaning chemicals. In a busy weekend, I might bottle three six gallon batches of wine and beer, rack another three and start three new batches. I will get through a lot of bottle wash and steriliser. More than is in the tiny bottles and sachets in the shop. Stock it in large bags or, better still, let me bring in a tub and you chuck in five pounds from your bulk supply. Less packaging and less work for you and you get to sell me larger quantities.
4) One LHBS is about fifteen minutes away from work and I would love to be able to get there on a weekday on the way home from work but it is not to be as they always shut at five in the afternoon. Being open until eight one evening a week, or even one evening a month would be a help.