In the last few months I've really gotten into small computer projects. I have two Pi 3's running right now, and a Pi Zero W on the way for another project. One is just running a simple Google Cloud Print server at my folks' house, because neither their color or b/w printer are wifi printers, so now they can print from any of their phones/computers/tablets to those printers. My other is running a standard RetroPie setup in my living room, so my roommate and I can play old school games. I plan on using the Zero for building a RetroPie in an old Gameboy Pocket. I'd also like to set up one as a sprinkler controller like this http://rayshobby.net/ospi/ I'd like to start tinkering with Arduinos too, but I've gotten so comfortable with Pis that I haven't tried them out yet.