Feature Request - Shopping cart for Ubuntu Software Center

One thing that I find severely lacking from the Ubuntu Software Center is any form of shopping cart, common to almost all online shopping experiences.

There have been many times where I have found myself wishing that I could add a software package to a 'shopping cart' and continue browsing through the software selection before having to install everything, instead of the current experience of installing each package one-at-a-time.

As the USC is little more than a graphical front-end for apt, I would suspect that setting up something like this would be relatively easy to do (it's just I lack the programming experience to do so), while providing a much better end-user experience.