Many members have reported this amazing new feature. It is called Amazon Day! Not a shopping day, but a new way to get your amazon goodies! Not everyone has this new shipping option yet, but more and more people are getting it as they roll it out.
To see if you have this new feature you can add any add-on item to your cart and head to checkout. If you have the new option it will let you proceed without the minimum so long as you select one day for all of your Amazon deliveries. You can change that day later too!
There are a few more specifics here. Don’t be alarmed if you don’t have this option yet, again it is invite only and they will roll it out in your area soon I’m sure.