The bathroom may not be the venue of choice for your next social gathering, but on any given day, it receives a number of visitors—and for that reason alone, it's worth paying extra attention to the design and decor of your bathroom. Consider too that bathroom upgrades can have a great return on investment. Fortunately, you don't have to spend a lot of time, money, or effort to transform your bathroom for the better. Even if you're not in the market for a full bathroom renovation, consider a DIY makeover using one of these 18 update ideas. With a bit of inspiration and basic skills, you can accomplish each one of these projects in just a day's time.