First, log into your Puppy Culture account. You can do so here, clicking the "Account Login" link.

Once you log in, you will be taken to your Account page. Click "Addresses" on the left sidebar.

This takes you to your 'Addresses' page, where you can view your current addresses.

You can add an address, edit an existing address, or delete an address. 

Click "Add New Address" to add a new address... You can choose to make this your default address by clicking the "set as default address" check box.

You can also change your default address on the main Addresses page.