2. Cracking Cola
You'll probably never want to drink cola again when you find out what it can be used for! It actually makes a pretty good toilet cleaner; just pour some in, leave for a while, and then flush. A cheap supermarket brand will do. Cola also has a range of other cleaning uses. It's great for removing rust - soak the rusty item overnight. And if you have any burnt saucepans, cola can deal with that as well!