I created a video using my new MT-Trainer (MT = MultiTasking)

http://www.teamliquid.net/forum/sc2-maps/479716-multitask-trainer-neomt-proberto

to show ppl Step #0.

German Youtube Video

Jak did not make a Step #0 for Terran but I think it's very important to use ControlGroups and Hotkeys right away.

If you want to train use this map first:
http://wiki.teamliquid.net/starcraft2/Multitask_and_hotkey_trainer