Summarize the following:
In the last paragraph, wrap up the letter. With an informal letter, that mainly means writing something about how you'd like them to write back or how you hope to visit. Add something like "Thanks for writing. I hope to see you soon." The final paragraph is a good place to repeat any important information. That way, it's fresh on their mind as they finish reading your letter. For instance, you might write, "Remember, we'll be there on Saturday at 8 a.m. sharp. Be dressed to impress!" People like to here something good at the end. It will leave them feeling glad they read your letter! Of course, if you're giving them bad news in the letter, it may not be appropriate to end it with a cheering note at the end, so use your best judgment. For instance, you could say something like, "I plan to come soon for a visit. I can't wait to see you!"

Summary:
Signal you're ending the letter in the final paragraph. Summarize anything you want your friend to remember. Try to end on a positive note.