How do I attain a sticker stale of my shirt?( I wash it)? its my favorite T shirt and it is made out of...

its my favorite T shirt and it is made out of cotton and now the chance backing of the sticker is still on and the sticker is similar to 6 by 4 inches! and its right in the middle too!!
please don't vote any products like goo gone unless its house hold products resembling baby grease or rubbing alchohol or something!

thanks surrounded by advance!