OpenSSH best practices. Mac OS X 10.10 “Yosemite” takes SSH security so seriously that after you upgrade, you can’t log in remotely. Even if you tell it you want to.
Use Ruby to make your graphs look hand-drawn, like the ones in XKCD.
Gruff: a library for creating beautiful charts in Ruby.
Microsoft promises that you can clean install Windows 10 after upgrading. Hanselman confirms, but look at the questions in people’s comments. Someone at Microsoft should be asking, why don’t they trust us, and what do we have to do so they start?