If you'd prefer to opt into automatic biweekly or monthly orders, you can do so by clicking Account in the upper right corner of your dashboard, selecting Account Information and then clicking Subscription on the left side of the page.
Click on the Subscription Type drop down to select Weekly, Biweekly or Monthly.
Keep in mind that when you opt to change your subscription frequency, your new delivery day will default to two weeks or four weeks out from your prior delivery day. So be sure to review your delivery schedule after saving your changes to ensure you made the desired change.
If you decide that you'd like to switch back to a weekly subscription, you can do so in the same section.