I get haircuts when a big change or event is happening in my life. Currently, my husband is graduating, I am leaving my job and the work force in general, we are moving across the country, and I have just had my second miscarriage.
Thus from this: 
To this:
(Trust me, there is a good five to six inches gone - it will look shorter when I have it curly. Not that it isn't trying to curl on its own in the second picture. Also, I stuck my orchid in that picture because I am so PROUD that it reflowered this year!)
My wedding:
The following day:

I also got a cut the night that I found out Max had died, although I don't have a picture because it wasn't super drastic. I was too afraid that I would regret what I had done in my distaught state.
Anyone want to psychoanalyze that? My best guess is that I want change that I can actually control, unlike the other changes in my life.