You can clean out your closet or help your parents clean out stuff around the house and then drive the donations to Goodwill, Habitat for Humanity Restore shop or another charitable organization. Remember to take pictures of what you donate and where you drop it off at.
You can stop into a Lifesource and donate blood. I will count this as one hour.
They have lots of shifts and some of them are just 1.5 hours.
Northern Illinois Foodbank will take food donations. You can run a food drive in your neighborhood.