Manual Window Placement in i3 (Part 1)
I've been using tiling window managers for the past couple of years. I started with awesome, then Notion (a fork of Ion; Ion is no longer maintained), and now I'm in the process of moving to i3. For those of you that aren't familiar with it, the screenshots all look the same. They all behave differently, though, and I guess you just have to find one that fits your mental model.
When you open a new window in most tiling window managers, your existing windows get rearranged or resized to make room for it. This is kind of one main idea, actually, and it works reasonably well when opening your second or third window. Beyond two or three, depending on the screen size and applications, it starts to suck.