Logic Puzzles

In your cellar there are three light switches in the off position. Each switch controls 1 of 3 light bulbs on the floor above. You may move any of the switches but you may only go upstairs to inspect the bulbs one time. How can you determine the switch for each bulb with one inspection?
I think I've got this one.

Turn on switch no.1 and wait 10 mins. Turn off switch no.1 and turn on switch no.2. Head upstairs, the light that is on is controlled by switch no.2, the light that is off and cold is controlled by switch no.3, the light that is off but still warm is controlled by switch no.1

Might not work with energy saving bulbs or modern LEDs :(