Active inventory For Sale Etc

Active = can the shirt show up on the site at all? If a product isn't active, you need to know the URL to be able to see it, it shouldn't show up in ANY lists

For Sale = Is the shirt for sale or not? If set to false, you can't add that shirt to a cart under any circumstances

Has Inventory = If False, the shirt is in 'on demand mode' ie. Bailey and Greg will actually print up any shirt that gets ordered. This is the mode that shirts are in when the count down timer is running. If True, we're talking about back-catalog items for which they have excess inventory they wish to sell. When this is true, we check the inventory levels before displaying the button to add the item to cart.

Date Expires = This is really only used for the count down timer but it really also will tell you which shirts are newest/oldest because of the way they do business.