>>3123866Buy a cleaning kit with wet swabs for your sensor type/manufacturer. On my old D40 I used cheap ones from ebay without problem. Its pretty much just some lint-free cloth on a stick soaked in isopropyl, but the fact that its cut to size makes it a lot easier than jury-rigging something yourself.
And you should always have a cheap blower in your kit as well, they cost nothing (again, ebay) and removes non-sticky residue fairly well.