Instead of just throwing away your trash after you're finished with it, a good solution is to reuse that piece of trash. For example many restaurants give you a container if you wish to take your extra food home with you. These containers can easily be washed and reused many times after your first use. You can also then take these with you when you go out for food instead of asking for a new container. By doing this, you will save a lot of plastic and reduce your trash intake as well.