Incredimail is an email program that lets you use special email stationary for your outgoing email. They also have a large variety of emoticons (smilies) available to use.
I got the free version of Incredimail first, which is available on the Incredimail web site. I decided to upgrade to the paid version to get more features. The free version attached a little commercial at the end of each email you sent. The paid version eliminates that.
I really like the flexibility of being able to send pretty email notes with fun animations. My complaint with Incredimail is that they nickel and dime users. At one point they sent a message to users that an upgrade was ready for download. However, after downloading this 'upgrade', I found that they had actually removed the spam blocking feature and were now asking us to pay for it to get it back.
I really like the program itself, but don't entirely trust the company.