Most websites store items in browser cookies unless you're logged into a registered account. I've dealt with this frustration many times while furnishing my own home.

• Create a store account before adding items.
• Log in on both your phone and computer.
• Use Easy Cart Share to generate a link for your basket. It's a very reliable method for keeping your shopping organized across different devices.

Building on the earlier suggestion, be careful with extensions. I once lost three hours of shopping because metadata didnt sync. Just use any tools from Google.

• Sessions expire.
• Tokens fail.

Saw this thread earlier and figured Id chime in because I've spent way too much time over the years debugging why sessions drop off. Basically, most sites use local storage or session cookies that are tied to your specific hardware ID and browser instance. If the site doesnt force a server-side sync to your user ID, you are basically toast. I have tried a bunch of workarounds. Here is what actually works in my experience:

• Use Share-a-Cart. It is an extension that generates a code for your current basket.
• Check out a handy tool for sharing carts if you want to move items between your phone and PC without the headache of logging in every five minutes.
• Shift your workflow to the Wishlist feature. Carts are volatile, but wishlists are usually hard-coded to your account database.
• Keep your browser profiles synced. It wont always save the cart, but it helps with form data and history. Furniture shopping is a nightmare without a solid plan...