I've fixed the odd few bits and pieces over the years, and it's very satisfying. The problematic bit is normally tracking down the bit you need at a reasonable

I've fixed the odd few bits and pieces over the years, and it's very satisfying. The problematic bit is normally tracking down the bit you need at a reasonable price. Occasionally you strike lucky - I think £15 for a new door-rack for my fridge, or find a place like elementman.co.uk (they just sell replacement elements for ovens) - but quite often you find yourself squinting at a poorly photographed bit of a dishwasher from a similar model number and wondering if it's the same. What would massively help is if all the bits were simply stamped with a unique part ID - and all these parts were listed in the manual. You could then search for the ID and get new/refurbished/pattern replacement parts and lookup the fitting reference. Or, when your fridge breaks, could just easily ebay all the parts that do work. Search for the model, see a list of the parts, check the ones you still have working and list.