Top Tips

[poodicat]

If you sprinkle candles with salt they burn slower and last longer,someone said if you also freeze them it makes them last longer also

[B00]

I should imagine sticking them in the freezer to stop you lighting them, thus making them last longer would work.

[buildersmate]

It is also true that the cheapest time to phone your friends is when they are out.

[Mr Veritas]

If you don't light the candles they last indefinitely!
I have some I purchased in 1950,and they still haven't burned down.LOL