I'm a huge fan of VistaPrint and have used their services for a ton of marketing materials for my own business as well as others.
Now that you have ordered from them, you will receive near-daily specials from them via e-mail. Some may find this annoying but I don't because they are always giving stuff away free. You have to pay S&H of course and you may want to make other purchases but the more you get to know the site you'll get really good at ordering and you won't believe the savings.
I've ordered their postcards, flyers, business cards, note cards, magnets, and so much more. Their delivery is quick even if you check "Slow delivery", the quality is excellent and their support team are helpful. And as you have already discovered, it's super easy to create the look you want.
If you get really creative, you can use the products for ideas that are "outside the box". For example, my daughter's Swim Team does a car wash each year. I ordered the free business cards and simply designed them as Car Wash Coupons.
Too bad I'm not an affiliate yet, eh?