Our Store uses a very common & popular method called Sessions for remembering
the items you put in your cart (without the need for you to sign in). If you have any
trouble please try the following:
1. Try deleting your browser’s cache/history or cookies.
2. Then close the tab you have open and open the site again (and go to the Store page).
3. You may even want to close your entire browser.

If all else fails try this advanced solution: Right click anywhere on the Store page until
you get a popup mouse menu (like the image to the left) and click on
Inspect Element.
Then: Click Resources > Click Cookies (or the arrow to the left of Cookies) > Click on one of the
rows (or more) and right-click > Click Clear All or Delete until all items are gone. See image below.