Have you considered radio? Very cost effective. I can help you create and ad and select the radio stations that will reach your target market. I can also help with your order taking.
Shelcom AT yahoo.com

You are not going to find anything more cost effective than iContact. Maybe you should use your service a little more often, and then you would feel like you are getting your money's worth. Or maybe you can share an account with someone else, and create a new mailing list for them, sending out once a month. You can set it up that way you know!
If you are searching for simple email marketing software that provides a platform for your online marketing campaigns, we encourage you to use our friends at iContact. iContact allows you to use multiple channels such as email, RSS feeds, and blogs to distribute your message to your prospects and customers.

The cheapest email advertising I've seen is Myster-e-mail, but Donkey Mails isn't too bad. A paid per click site Linkgrand offers 1,000 hits for $5 (plus you are left in their archive so Google spiders can pick up the link).

For reviews on these sites visit
Note that this blog is mainly for people who want to make money from emails and clicking on ads but it may give you links to a few sites that will give you good advertising prices.

Really hope this helps you.

I hope you choose to stay with iContact. We tend to be the one of least expensive solutions in terms of web-based applications–which are critical for maintaining good deliverability. Let me know if I can be of any assistance!

Cheers,
Ryan Allis, CEO
iContact