Invest in a bike. Getting places is so much easier (weave in and around traffic, disobey road rules). It saves you money as you don't have to spend it on fuel and parking tickets. It will get you fitter, help your general well being and will help with losing weight. It can also allow you to drink alcohol at places as you have a mode of transport home. Trust me, drunk ride homes are a breeze.
Any bike will do - A road bike will probably help the most. You can normally pick these up quite cheap second hand. Give them a quick wash and maybe new rims, tyres and tubes. Then it's good to go.
Pro-tip: A 10k ride will take roughly half an hour!
