What Sales Tools Do You Use The Most?

So far the telephone is winning in this poll, but email marketing is a close second - which is surprising in light of how many of you chose email spam as the most irritating form of advertising (What kind of advertising bugs you the most?).
Cast your vote in the sales tool poll by clicking on this entry's title link. And if you haven't voted yet or want to change your vote, the irritating advertising poll is still open.
More: Get Ready To Sell - Learn how to cultivate and boost your confidence to increase your sales.