Biking - £400 bike with maybe £100 of upgrades. Just a hardtail and it's too damned small for anything but jumping. Each month about £30 in petrol getting to and from different biking places. Mainly Glentress (http://www.7stanes.gov.uk/forestry/achs-5rnfvj) and a couple of times up north to Laggan/Wolftrax. Where I live is pretty flat and I have no biking buddies nearby, so it sucks a little that I need to take the car whenever I want to do anything good. Messing around with bits of wood and doing my Ray Mears/Survival thing - about £20 for some knives and a firestick. I like trying to carve things out of bits of wood. It's a good stress reliever. Walking - petrol to get to nice places.