If your significant other, friend or parent shrinks your shirt (because you would never do that), here is a tip on how to "un-shrink" it. Give it a try and let us know how it worked for you!
Source: http://www.reddit.com/r/LifeProTips/comments/vof2x/lpt_fix_a_shrunken_article_of_clothing_tshirt_for/