According to this fun site that Leslie found, April is National Card and Letter Writing Month. So, your exercise for today is simple: Write a card or letter to someone and mail it.
Yes, I'm talking about taking 10 minutes for an actual pen-to-paper, look up their mailing address, find a stamp, lick-the-envelope communication. It's a tad more effort than an email, IM or text. And the lucky person who receives your missive will know that.
P.S. It's also International Twit Award Month. Don't make me go there ...
Amuse Amber #16: Check out the Online Sketch Pad!