I don't know if this counts as renovations or more just putting our stuff into a space & making it our own, but I'm going to show you anyway. They only change to the room we made was to install a new blind. $120 from home hardware and the room has a whole new look. It does show how easy it is to transform a space with things you love and one new thing.
When we moved in we were certain that one of the first things we'd do would be to change the colour of the fireplace, but we're used to it now, and we'll probably wait till next winter to paint it & replace the gas heater. Is there anything at your place that you were certain you'd change but have come to like?