Two old ladies Dolly and Ruby were talking about their grandchildren.

Dolly said, " Each year I send each of my grandchildren a card with a generous 
check inside. I never hear from them .. never receive a thank you message."

Ruby replies, " I too send my grandchildren a very generous check. I hear
from them within a week after they receive it.  In fact, they each pay me a
personal visit. "

"Wow ! How come ? "  remarked Dolly.

"Very simple solution .. I don't sign the check !"


p/s very simple and honest suggestion :)