What you probably don't own is that air blower, in which case we recommend Giottos's Rocket Air Blaster Large ($10). It's nice and cheap, but does a great job.
The same blowing technique shown in the video works on the sensor if you're suffering from dust particles ruining your images. Just be careful not to touch it. It's the brains of the dSLR.
But hey, if you're still fearful that the air blow will be sitting around doing nothing when not in use, you can count on using it as an effective monitor duster. See? A little bit of creativity can go a long way.
Got lens cleaning tips? We'd love to hear them!
(Image by teddyrised courtesy of CC license)