Like I really have to ask that question? How often do you HAVE to shower? I would say one a day. Easy.

Science, on the other hand, says differently. Buzzfeed has this to say about the matter.

Every two or three days? Maybe if I'm just bumming around the house for a day or two...of course. But if I'm in public, no way.

Hoby Finn/ThinkStock
Hoby Finn/ThinkStock

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