You can add as many addresses to your address book as you wish. Visit the 'Address Book' page after logging in to your account and click the 'Add New Address' button. After filling in your new address details, this will be automatically saved for selection in check out.
To edit a previously added address, click the pencil icon on the right-hand side of the address nickname. After editing the address details, click the 'Save' button to finish.
To delete a previously added address, click the trash can icon on the right-hand side of the address nickname.