|July 15th, 2014
It's funny: when I originally decided to start donating, back in 2009 I wanted to go for half, but at the time that turned out to be pushing myself too hard. Five years of optimizing later it's much more doable.
I think 2014 will look something like this:
(I'm planning to leave my Giving What We Can pledge at 30%, because I don't know if I'll always be able to do 50%. In particular, wages for programmers are high now because there's lots of demand, but I expect this to fade at some point.)
 One of the weird things was that some things were in terms of pre-tax income and others were post-tax. For example, the percentages on the donations page are currently post-tax. There are arguments both ways, but I want simple and I think pre-tax is simpler. I'll update the donations page once I have final 2014 numbers.