1) BACK END CATALOGINGSend your customers a catalog of add-on products for
original product they purchased. This could be upgrades, special services, attachments, etc. If they enjoy your product they will buy
extra add-ons.
You could charge other businesses for including their products in
catalog too. This'll help to pay for postage, packaging and producing
catalog. If you want to cut costs, produce
catalog in email or ebook format.
2) GIFT CERTIFICATES
Sell gift certificates for your products. You'll make sales from
purchase of
gift certificate, when
recipient cashes it in. If
recipient never uses
gift certificate, it adds up to a huge profit.
When people do use their gift certificates they may also buy other products you offer while they are shopping around your web site.