Thought I'd start a thread to keep track of useful stuff we find out while playing. Will add yours in as you list em. Only have a couple so far (this is currently mostly for my memories sake as I found these out today and they helped, but am uber tired )

If game performance is poor, regardless of lowering in game settings? add -High to your Launch Options

Play other maps on Public servers by typing Call Vote in chat. All maps available. Played Dust2 and Inferno tonight.

I've purposely left all the console commands i've been playing with (Rate, cl_interp, cl_interp_ratio, cl_cmdrate, cl_updaterate (66, for 66 tic server, 100 for 100 tic, etc); whilst they were useful in source for accuracy, speed of seeing enemy etc, I'm not sure how they operate in CS:GO).

Short list; placemarker thread. Add suggestions below so we can start to build a guide for newbies.