Falcon Dust Off Air in a can: Compressed air for dusting. In a can. Yes folks, the future is here. Has been for some time.

No...wait...what?

A superb way of cleaning out your PC's heatsink as well as getting dust off camera lenses without scratching them and cleaning weeks/months/years worth of lunchtime crumbs from in between the keys of your computer keyboard. A myriad other applications exist that we won't go into in too much depth, but worth noting that it's a brilliant and CFC-free way of getting dogs to stop fighting. Seriously.