Part of growing up is getting used to the idea that taking care of your things helps you spend less money in the long run, like your coffee table or desk for instance. Don't riddle your tabletops with water or whiskey rings from your glasses, put a coaster down, and make that table last. And since you are buying grown-up things, you might as well buy cool ones, enter Commonplace's cast bronze coasters. Made from 100% pure bronze, these heavy beauties (with imperfections and all) are an awesome statement to any bachelor pad.
Available at commonplaceshop.com for $24/ea