Useful tip: Keeping instant coffee fresh

Instant coffee granules usually lose their flavor over time after the bottle is opened. This is a dilemma when you wanna save some money by buying a bigger bottle but yet have to take a longer time to consume all of it.

Learned a neat little trick from Jap drama Detective Galileo. Instead of removing the foil entirely, just punch a hole at the side. Instead of scooping the granules with a spoon, just pour out directly from the bottle.

Two significant advantages: Firstly, opening a small hole exposes much lesser of the coffee to the air and therefore losing less of the flavor. Secondly, when we use a spoon (especially a metallic one) to scoop, there tend to be moisture introduced to the coffee simply because of the slight difference in temperature (metal is cooler). That's why over a longer period of time, the coffee may "clump" together or even get moldy.

I think it's a great idea. Can anyone think of other applications for this idea?