Lately I have been playing around with vistaprints website and I noticed that from one day to the next the price on something specific like 1000 letterheads would change significantly. I started screwing around with it and finally figured out that the prices you see on vistaprint are %100 dependent on what link brought you to the site. So I found that if you google vistaprint coupon codes you find sites such as:
This site lists many of the different deals they have going right now. There is no rhyme or reason to what prices come from what link so I have found that it's best to find what you want and look at the prices from by clicking through each link individually.