From the Tim Ferris 4 hour workweek blog written by Benny Lewis.
http://fourhourworkweek.com/2014/03/21/how-to-learn-a-foreign-language-2/

#1 – Learn the right words, the right way.
#2 – Learn cognates: your friend in every single language.
#3 – Interact in your language daily without traveling.
#4 – Skype today for daily spoken practice.
#5 – Save your money. The best resources are free.
#6 – Realize that adults are actually better language learners than kids.
#7 – Expand your vocabulary with mnemonics.
#8 – Embrace mistakes.
#9 – Create SMART goals.
#10 – Jump from Conversational (B1) to Mastery (C2).
#11 – Learn to sound more native.
#12 – Become a polyglot.