It sounds so simple, but too many small companies neglect to put their name and phone number on their products.
One small Arizona company, Tessita's Secret, was smart to print their contact information on the label. After just one sniff, I fell in love with their deliciously fragrant lotion made with cactus extracts and aloe vera. Before I used the last dab, I called the number on the bottom of the jar and ordered more.
Your package should be a tiny billboard to attract repeat sales. Always include your address, phone number, and web site. If people liked your products, you want to make sure they know how to buy more.