[quote=@The Nexerus]
[@Azarthes] If you were committed you'd shower with the suit still on.
<Snipped quote by Antarctic Termite>

Honestly, there's no good reason to worry about it. The amount of water that you use to take a longer than necessary shower is drastically smaller than the amount of water that was used to, say, cultivate the almonds that you snacked on afterwards. Most of humanity's water use is agricultural or industrial. Personal use, even to a frivolous degree, is negligible.

Plus, you're not [i]really[/i] consuming water when you take a shower, at least not in the same way that you consume petroleum when you ignite your engine. It's all filtered back through and reused. Earth has exactly the same amount of water on it right now as it did before Homo Sapiens first carved a sharp rock into a sharper rock.
[/quote]

Don't you have to pay for the water you use, though?