DoSomething.org, the largest organization for young people and social change, and AARP Foundation's Mentor Up are teaming up for the second annual Love Letters campaign that encourages young people to create handmade Valentine's Day cards to lift the spirits of older adults this holiday season. Handmade cards will be included in meal deliveries to Meals On Wheels clients across the country. The campaign runs through February 15 and young people who sign up at DoSomething.org/loveletters and report back with a photo will be eligible to win a $10,000 scholarship. Find the full details here.