Even though Thanksgiving is behind us, there are still opportunities to give back to those in need. 
There are currently 486,000 San Diegans who live in poverty and face the threat of hunger every day. Of those people, 9160 are also homeless, and these numbers are rising.
You can volunteer your time to help prepare meals and serve them to homeless shelters, not only during Thanksgiving but any time of the year. Just Call Us Volunteers is an organization that makes this possible, you can email them, info@justcallusvolunteers.org, or simply donate $20 to help them buy food, or whatever it may be https://goo.gl/ASqK3G. 
Another option is simply organizing a yard-sale for charity. With the money you make, it can be used to tailor service packages for kids with autism, and their families https://goo.gl/L1SWzg. Your generous donations will be used to provide classes, field trips and cover costs for the families with autistic children.