100 Amazing Advertising Tips!
When you sell a product, give your customers the option of joining an affiliate program so they can make commissions selling your product. This will multiply the sale you just made.
When you make your first sale, followup with the customer. You could followup with a "thank you" email and include an advertisement for other products you sell. You could followup every few months.
Note: This is not a free ebook. Don't give it away to others. Includes Resell Rights