The age of interruption marketing has seen its better days. It doesn't spell the death of the traditional medias but splinters them.
It's hopefully created a more focused approach to your advertising and marketing.
Take direct mail. A 2% return is considered good.
You can easily double, triple and even quadruple that return with a couple of tweeks.
First off do not send out your entire mailer in one sitting. You won't blow your whole budget and you also will be able to pace yourself to accommodate the work.
Secondly and probably more important, make sure you do your homework on acquiring your mailing list. Outdated lists end up costing you a fortune. Do the math. If your return goes from 2-6%, is it worth it to pay more for your lists?