I'm pretty much always working on something in my off hours. Here are some of the things I've been spending time with:
Around the beginning of 2013, I got really interested in interactive fiction (IF) again. I watched the documentary Get Lamp, I read the comprehensive Twisty Little Passages, and I started writing my own IF with Inform 7. I even went so far as to try writing an ambitious IF work for "Camp NaNoWriMo", but things fell apart due to the large number of interacting systems and the difficulty of predicting exactly how Inform would interpret the rules I had created. Recently I looked into TADS3, a system for writing IF that focuses on a more traditional object-oriented programming model as opposed to Inform7's "natural language" syntax. I've been experimenting with TADS3, and eventually I hope to return to that earlier game. It took place on a train, and involved hypnotism!
I did a lot of work recently with CreateJS, a Canvas framework for doing graphics-intensive websites. I dug deep into CreateJS best practice (and Canvas best practice in general), and I intend to put together some tutorials on how to set up a parallax scrolling website.
Unnamed Phaser Game Project
Phaser is a more game-focused alternative to CreateJS. I've been spending some time getting to know the system and I am slowly working to put together a game with the framework.