Save money by growing your own food. Not only is this cheaper and healthier for you, it will provide you with good exercise and maybe an additional hobby.
No matter what space that you have available, you can grow a whole range of vegetables ranging from herbs,cress, peppers and chilli's in small pots on a window sill; to carrots and potatoes in larger patio pots, to the full range of vegetables if you have garden space or a green house.
Easy vegetables to start with are lettuce, tomatoes, spring onions,courgettes and beans.