Make sure they get their order in just a few days. Customers want to know how to get in touch with you if they have questions. Be sure to supply your E-mail address, your street address, and a phone number. You can also display your online transaction companies number if you use a third party. When a customer does send you E-mail, respond promptly.
Customers deserve to be treated like gold.
If you can, make it a policy to respond to E-mail within an hour or two at most. Customers will be delighted to see that you care about them. If possible, include an image of your catalog or building, customer testimonials, or even a brief company history. Let customers leave feedback on your products. If customers see other people are happy with your products, the more likely they are to buy as well.