And you don't have a head shot, Joshua. What's up with that. 

Every 2 years. It cracks me up when I see some agents business cards with their photo or their marketing materials or website and their phot looks to be AT LEAST 20 years old

Seldom

When the opportunity arises.

I don't as long as I continue to look like my picture.

Good morning Joshua. I'm due, so not often enough.

I'm annoyed to see my same face for a long time, so I try to update every 1-2 years. I knew the agent who had the same head shot for 20 years( or so). And this is not rare for my L.A. area:)

Not often enough Joshua.  

Every 2 years

Not enough....There are still no wrinkles in my current head shot :)

Everytime I change my hairdo.  Which is every couple of years.

I try to do it every year, sadly this is year two of having the same one. Sometime this in the next two month I'll get some updated once.

Professional shots .... generally about every two years. My current photo was taken in July 2014.

I go casual and do it about every six months or so.  It's time again.

Oten enough!  I do not want people to look at my card, look at me, and wonder "what the heck".  There should be a strong resemblence between the image on the card and the person the client meets.  

I did mine last August. 

Once a year at least...