Say you wanted to sling your berry offers through the mail to a targeted audience, you'll want to look up a magazine that has circulation to that target demographic.
Harpo magazine may just work well for this scenario
Call em up and ask for PAID CIRCULATION. You want your list to be people that actually bought the magazine (sometimes as low as ~20% of standard circulation).
Print up some postcards with a very clear call to action (hell, reconfigure one of your current converting LPs to postcard size) and get them printed and mailed out. You shouldn't have a problem finding a local print shop that will do it for a fair price and they can point you to someone that can handle your shipping, if they don't do it in-house.
Back to the magazine leads list, you don't even have to rent the whole list. Ask your rep to start with maybe ~10k or so at first to see if you can pull a profit from that sample size. Make sure that you are targeting across the entire area (i.e. make sure they aren't just sending you leads from NY or the Southeast, but a real sample of their entire distribution).
If you get a good response, scale it up.
Yeah, this will cost you more coin up-front than throwing $xxx at Adwords but the payoffs can be pretty big.
I've been tinkering with this for the past year or so and I plan on really scaling it up because once you get someone to walk to their computer for the SOLE PURPOSE of typing in the URL in your ad or on your postcard, they are obviously VERY interested and unless you're sending them to a meat-spin by accident (or by very expensive joke) your conversions should be very, very good.