Everyone makes mistakes—and the Krazy Coupon Lady is no exception. We’ve been posting about Amazon Add-on Items lately, and there’s been some confusion about just what an Add-on is, and how these items can be purchased.

What's an Add-on Item?

Amazon’s Add-on Items are deeply-discounted products that cost too much to ship on their own. In fact, they can't be purchased as single items. Add-ons are marked online with a blue "Add-on Item" sticker, and include anything from baby toys and cutting boards, to protein bars and coffee cups. Contrary to popular belief (ours included) Add-ons cannot be used as filler items to pad orders that are just short of the magic $25.00 mark—the minimum needed for Free Super Saver Shipping.

Instead, Add-ons must be grouped with orders of at least $25.00. In this case, items ship for free. If your order is less than $25.00, you ‘ll have to save those Add-ons for later. There is one exception to this rule: bulk buying. If you find an item you can’t do without, you can assemble an entire order of Add-ons—as long as it’s worth at least $25.00.

How can I find Add-on Items?

One method is to enter "Add-on Items" into the Amazon search bar and look around. Or, go the easy route and try a search site like Superfillers. Just remember, Add-on prices (like all Amazon prices) can change quickly.

Here are a few popular Add-on Items we found this week: