You sure can!
Simply log into your account and go to "User Information". Next, go to 'My Address Book' and from there you will see your default address. Click 'Add New' and put in the alternative delivery address you would like and don't forget to save!
Then, click on "Orders" and there you will see 'Current Orders'. Under the recipes for that week you will see your address with 'Change' under it, click there and all your addresses will show. Click on the address where you would like that order to be sent, and you're all set!
Please be aware that in some cases, when updating the selected default delivery address, it can't be automatically applied to upcoming orders, you will have to manually do it. You will receive an email informing you of this address change and if further action is required, please contact us directly.