Hi I forgot one which has helped us go from being a 2 car family to a one car family - if you or DP can - ride your bike where ever you can - before child DH and I both rode our bikes to work and home most days all up 60km round trip saved heaps on petrol, rid us of public transport frustration and cost etc etc and no need for gym membership! Takes a bit of planning (ie have to get work clothes to work) and a little capital investment but a great great green way of getting around!