Giving bone marrow doesn’t cost anything, and it only takes one day as an outpatient to let those doctors tap into your bone marrow to donate fluid. But if you’re uneasy with needles, or submit a cheek swab and never get matched to someone in need, buy OPI’s I love DKMS as Lucky suggests, and part of the purchase will go toward battling leukemia.

To get a cheek swab and see if you're a genetic match to donate bone marrow for a patient suffering from leukemia, go to the DKMS website.