There is a reason these tactics are going to look familiar. You have seen them thousands of times because they work! Give the customer a good deal, but put competitive pressure on them to respond now! Make sure that the price you offer allows you to make some money or to recover money from stock that has not been moving at your previous price. The most effective way to use this tactic is in three steps.

Establish the value of the merchandise and then talk about the value of the offer. In stores, they sell this kitchen gadget for $200. We have gotten a special purchase and we are going to pass the savings onto you. Today only, you can have it for $79.95. Tomorrow, the price goes back up to a still-reasonable $99.95.
Limit the availability. You can do this by time, "Today Only!", or by number of units available. The Home Shopping Network does this to perfection by showing the countdown on units still available for sale.
Add on bonuses. If you buy today, we will also throw in - at no extra charge - this valuable gift worth $19.95. It is perfect as a gift, or as a gift for yourself.
What a deal! Some of your customers will find it simply irresistible.

-Cynthia Nemeth-Johannes