I'd say every 3-4 months, as I prefer my hair to be long. Only when the ends get really split do I go, as I plan to do this weekend. I actually get my eyebrows and upper lip waxed more often after getting a spa gift certificate for my last birthday. I found a closer salon that does that for less than the salon.
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"I do not feel obliged to believe that the same God who has endowed us with sense, reason,
and intellect has intended us to forgo their use."
- Galileo Galilei