Okay, now in the interest of full disclosure, I'd like to say that I have no affiliation with this company at all. They are not paying me for this endorsement, either in cash, gifts or trade.
But this is a product that I personally send to clients, and they always love it. More importantly, it's pretty cheap, especially if you buy in bulk.
I guess by now, you can see what it is. It's pretty self-explanatory.
It's a self-inking stamp with your client's new address on it. It really comes in handy for people who are sending all of their mail from a brand new address.
They will use it every week for years. (I've had one for three years now and it still inks up just fine.) And every week, when they are paying bills, they will see your name.
They cost me $10 per, because I buy in bulk. I think the high-end price is $15.
They come gift-wrapped in gold foil and are a nice little surprise for your new homeowners. They ship them for you, so you don't have to worry about that.
I cannot begin to tell you how much these things have paid off. Clients love them and I have done dozens of refinances where people have told me that they remembered to call me because of the stamp.
So where do you get them? Adstamp.com
I really think this is an awesome marketing tool.

Awesome! Thanks for sharing this! How do you buy in bulk if you have to wait until closing? Do you usually have a lot of closings happen at once or can you buy say 10 at a time and then order them as you need them?
Sincerely,
Kathleen