In this section on Grandma’s tips, you’ll find all sorts of traditional domestic tips used by our mothers and grandmothers. They often save time and money, and will surprise you with how inventive and effective they are.Today’s tip:Bicarbonate of soda is useful for more than just cake baking! It’s a great natural cleaner and can be used to get rid of stubborn stains and burnt-on food.Cleaning the oven is one of everyone’s least favourite jobs! But make it a little easier by mixing bicarbonate of soda with a little water to make it into a paste. Smear this on the sides and base of the oven, then heat the oven for around half an hour.You’ll find that the burnt-on food comes off more easily!