A white cotton T-shirt might be the single\u00a0most versatile piece of clothing on the planet. It's the ultimate cozy\u00a0basic, but it's also the perfect blank canvas to build on.We asked\u00a0I Spy DIY blogger\u00a0Jenni Radosevich\u00a0to show our very own\u00a0Lauren Valenti how to transform a simple crew-neck tee into something much chicer, thanks to the help of\u00a0feather trim, retro-inspired lettering, and\u00a0a\u00a0stamped-on\u00a0pineapple print. The best part?\u00a0These looks are totally\u00a0wallet-friendly and\u00a0easy to pull off. \n\n\t\tAdvertisement - Continue Reading Below\n\t\n\nAfter getting the play-by-play from Jenni in the video above, shop for your own cotton\u00a0tee\u00a0here\u00a0and\u00a0give it a go at home. But be warned:\u00a0If you weren't already living in a T-shirt, you will be now.Follow\u00a0Marie Claire on Instagram\u00a0for the latest celeb news, pretty pics, funny stuff, and an insider POV.