The article from Yahoo Lifestyle titled "40 Upgrades One DIY-er Made to Her Home for Under $40 Each" showcases a variety of budget-friendly home improvement projects completed by a single DIY enthusiast. The projects range from simple decor enhancements like painting old furniture and creating a gallery wall, to more functional upgrades such as installing new lighting fixtures and organizing kitchen spaces. Each project was completed for under $40, demonstrating that significant home transformations can be achieved without breaking the bank. The article provides inspiration and practical tips for readers looking to enhance their living spaces affordably.