How to advertise "tip of the day"

[StreetwiseReports]

I have an email list of a few thousand and would like to start giving my subscribers a tip of the day. However, I have found that emailing all of them an email every day calls for a pricey email subscription. I was thinking of an RSS feed and a widget but those will only satisfy website owners/viewers. What is the best way to give a tip of the day via email to my subscribers without it costing me an arm and a leg?

[Copstead]

Email is really the only way to deliver to them.  RSS will work, but they need to know how to receive RSS feeds in their email program.  I would investigate Social, Twitter, Facebook.