How To Add One-Time Products To Your Subscription Box
Sign into your C&P Account, then you will find 'Manage Subscriptions' under your name on your profile. From there, you will select 'Edit' next to your subscription. Then, you will see 'Toss These In' where you will be able to add-on store products to your upcoming subscription order.
These items are listed in alphabetical order. If items are added after your renewal and you are a month-to-month subscriber, they will be included in your next box. For pre-paid subscribers, the add-on items will be included in the first box of your next renewal.
Click the following link for a step-by-step tutorial on how to add one-time products to your subscription box: