This is a big problem. Why would you want to pound your list with everyone else's' offers until they leave your list. Only offer them something from mailing list someone else if it makes sense and you love it and use it yourself. Be the review, and tell them exactly how you use it, why you use it, and offer to do a free video or webinar training on the product from you. Make it enjoyable and fun to buy this product from you not another affiliate. I have a spice shop client who worked a deal with an Evoo (Olive Oil) store.
They did a joint mailing to both their lists offering a pairing of their products. It went over wonderfully and they now do it every 12 weeks! 5) Be consistent. Let your list know you care and will be there with information and help for them. That when mailing list they are ready to buy or need your services again you will be ready. I once had a woman find me and tell me she couldn't remember my name but had wanted my services again! After that, I never forgot to be consistent with my mailings.
I also do a regular or direct mailed newsletter to my buyers. These people hear from me once a month by mail, and weekly by email. No, I am not selling them anything. I am just providing valued information. Finally, realize people have mailing list buying cycles. They may buy from you and them not be ready for your services for a month, six months, or even a year down the road.