Best way to clean the dust in a computer?

[lupin..the..3rd]

Originally Posted by Undertoad

Take the system outside. Open all panels. Get four cans of air. Blow with the first one until it freezes and loses strength. Then start with the second one...

That's what I've always done, though I've found one can to be sufficient. Why blow all that dust around inside your house? Take the whole thing outside and do it out there. That dust is nasty. Oh, and make sure it's not raining outside when you do this.