It never fails; you want to upgrade your aging PC, but you still need that archaic RS-232C serial port for controlling your Parallax Boe-Bot, using that serial mouse, getting online via your trusted Hayes ACCURA V.90 modem, and, even, programming your Pfaff 2140 sewing machine. Apple Boot Camp enlistees can run into a similar RS-232C port quagmire using an older Windows app on a MacBook Air.

PopSci's esteemed "The Goods" section-the place to go for the hottest tech products around-is now coming to you once a week on PopSci.com. Launch the gallery here.

Thanks to advances in consumer tech, daily activities like stirring your coffee and ironing your clothes just might become obsolete. Think what you could do with all the extra time and energy you´ll save by not mowing your lawn or mopping your floors. You could write the great American novel, or start working on a cure for cancer. Or catch a few M.A.S.H. rerunsâ€

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We gadget editors were intrigued by the idea of RadarGolf, a new device that allows players to home in on special balls equipped with radar chips, but none of us actually knows how to play golf. Luckily, our esteemed general manager, Rob Novick (handicap 17), was willing to take a swing at reviewing it for us. Here's what he had to say:

A: Tagging is the act of assigning your own keywords to things online-photos, blog entries, bookmarks-so that you can easily categorize, locate, and share them in the future. One of the best examples is del.icio.us, which lets you save Web bookmarks to a page on the site instead of to a file stashed away on your computer. This way, you can access them from anywhere and let other people see what sites you like.

Over the years, your key chain has become a custodial clump of assorted accessories and unidentified house, locker and car keys. Time to free up some ringside real estate and make room for the latest key-chain gadgets. Careful, though-losing your keys has never been quite so expensive.