Sorry that it took me so long to respond. My 22 month old daughter had gone into the hospital today for a sedated hearing test, and we got home late. I actually didn't think of allowing the kids to write back, I actually think that is a wonderful idea. As for the price, I was thinking of going one of two ways.

1) Doing the price as a monthly/yearly price.I don't know how I would come up with a price based on the number of children in the family.

2) Doing the price based on the amount of kids and base it on a set period of time.

While I was at the hospital waiting for my daughter, I came up with a variation for this letter of the month club. What if I offered the option for either a letter each month, or just a letter per holiday, including their birthdays. They would learn about different holidays all around the world and it would be like an extra present for them, yet they're still learning at the same time?

Thanks everyone for all your advice and help thusfar. It's such a boost for a young mother like me!

PS: Check out my jewellery site @ http://strykerdesigns.ecrater.com !!!