Bralettes are a lazy girl’s best friend when it comes to being comfy and covered. Aerie is having a BOGO on all bralettes and unlined bras, in basically every style you could think of. With most of them priced in the $25-$30 range, that means you’re getting two of them for just $13-$15 each. I recommend stocking up on a couple different styles.
I also recommend poking around the site for other deals, like 10-for-$30 underwear, and up to 60% off a ton of spring- and summer-ready styles in their clearance section.