You have to be logged in to the site or registered to save your basket.
When you have built your basket and want to save it then click the 'Log Off' tab at the top of the page.
The site will then ask you to save or delete your basket, simply click 'Save basket'
When you come back to the site and 'Log in' again your basket you will need to select the "Basket" tab along the top, once you have clicked onto this, there is then a link in the basket that states "Retrieve your basket." Once this is clicked it will bring up a list of all your saved baskets.
CAUTION: This will replace any current basket you may have built up. Additionally, once you have retrieved a basket, it will no longer be saved unless you logoff and save it again.
If you are not a registed user, you can register by clicking on the register option on the right hand side under the log in menu.