From Arctic Silver 5 instructions.DO NOT use your bare finger to apply or smooth the compound (skin cells, and oils again).
Anandtech guide to Venice overclocking.pply a small amount of thermal paste to the center of the CPU heat spreader, then smooth it out a bit using your finger, a razor blade, etc.
Someone needs to edit that part of the article to ensure people don't use their bare fingers.
Personally I get some cling film or a plastic food bag (like they show on the AS site) and use that to spread the paste slightly. Anyone else got tips on how they spread?