Hey Joe, 

I think the secret to making sure your sensor has no dust on, is investing in a proper blower.  I've done exactly that and I haven't looked back since.  And of course testing whether your sensor is clean as described in the previous thread is always a good idea.  But man, lemme tell you, I get stressed endlessly when - after the third or fourth time of using the blower and cleaning the sensor and testing whether there's dust on - and it's still not clean.  Then I just feel like packing it all up and putting my cam away somewhere in a cupboard and forgetting about the art called photography.  LOL  Yeah, that bad...

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