12 minute marine push.
People always seem to be surprised that you can do a 12 minute marine push off of one gas, and I have had man zergs quit when I do this.
Build is simple, 2 fruit farms, one marine, and first gas- wall around base in circle size of construction yard (include at least one gate)-construction yard-defender- pull marines and destroy rocks, build six cow farms and produce cows, and take gas inside base- upgrade gas refineries- 2 to 3 energy upgrades, advance battery- armory- stim, shattering, and as many marines as you can build before upgrades finish.
15 minute bats.
Yeah everyone knows this but incase you don't.
Build is simple, 2 fruit farms, one marine, and first gas- wall around base in circle size of construction yard (include at least one gate)-construction yard-defender- pull marines and destroy rocks, build six cow farms and produce cows, and take gas inside base- upgrade gas refineries- get upgrades and get refinery.
(I would not recommend doing this, but..)You can also do the same thing for rushing a adept into ion, elites, and ion. The beginning is always the same and all the income you need is just 4 fruit farms with 12 cow farms with both gas income upgrades. (Will get you to about 450 mineral income ish.) Just remember that if you are rushing adept or ion to support your teammates when they are pushing, and as a general rule dont build more than one adept before ioning.
Generally its better to push out and take 3 gasses, because it helps your teammates, but if your teammates are bad, you have bad latency, or you feel like your going to get focused these early game, these can be good builds.
Hope this help some people