First you need to leave the cooking oil until it’s cool. Later you should pour it into a container. This way you can always store it in the freezer. Now it should be possible to reuse some of it. If not, there are many ways to dispose of it, like making and oil lamp. When you have a restaurant near, they should have a special cans where you can throw it away. If you want to dispose of it, call for London Collectors. They are always glad to help you.