One of the simple joys in life is getting an unexpected note in the mail. Mailing notes for anything besides birthday and Christmas is almost extinct, but the sheer thrill of receiving a letter is not. As a poor college student, I have to carefully gauge my spending money, even that which is used for stamps and stationery. An easy solution: e-cards!
Hallmark has a vast e-card selection, quite a few of which are free. I encourage you to send a few and see if you like the system. If you find you've discovered your new favorite way of sending a ray of sunshine, consider purchasing a year's subscription for $10 (as opposed to $1 each). My favorite Hallmark e-cards to send and receive are Hoops and Yoyo!
It has been said that a card is the biggest little thing you can do for someone. I recommend being an encouragement to someone when you're feeling down, because in lifting someone else up we become encouraged. E-cards aren't the only way to send a smile, but I enjoy it and hope you'll give it a shot, too.