Being in sales is hard work. After all, the only thing more painful than trying to sell a hand cream or knife set to a stubborn client is perhaps pulling out teeth - without novacaine. And God knows how many times we've hung up on telemarketers because, well, they're a little too persistant.
But if marketing/sales happens to be the field you work in, it may be integral to your livelihood (i.e. no food on the table otherwise) that you make a sale. So check out this video for tips on refining your pitch.