So, you boot up your PC, intending to dive into the world of your favorite game, be that Diablo,WoW, Hearthstone, StarCraft, DotA, LoL or anything else. Setting aside "check facebook" and things along the lines of that, what's your first gaming activity?
FIre up Steam if I need it, else just dive straight into the game, pretty much. In case of Diablo I run the game full screen windowed which leaves me room to browse the web on my 2nd monitor. I tend to do that during loading screens or cinematics or stuff like that (which in D3 are fairly fast so I usually don't have time). But I know myself well enough to not check beforehand: I'd end up browsing for a long time (30+ mins) and not play the game I intended to after all.
I do dive straight into the game, but I made a video with all of the Diablo 2 Music specifically for the purpose of keeping this one playing low key on a second monitor while I play the game: https://www.youtube.com/watch?v=4zABc79sq2c