We bought a large very neglected Edwardian semi nearly 5 years ago now and had all the really dirty jobs done before we moved in (complete rewire and almost all new plumbing, some replacement floors and repairs to others, lots of dodgy old built- in cupboards ripped out, lots of replastering - some all new, some skimmed).
We moved in about 6 months into the project with a new kitchen but only half a bathroom and have been gradually finishing things since then, one big job at a time - bathrooms, garden, decorating, tiling the kitchen floor, wood burners, floor board sanding.
For the last couple of years there have only been small things left, which we can live with - and so we haven't got round to getting them done (still not painted the internal woodwork, for example). We've had lots of other stuff on (family illness, bereavement etc) but mostly just ran out of energy. And of course, 4 years in, some of the decorating etc really needs re-doing, which is a bit dispiriting.
So if I had a top tip, I'd probably say - push on, don't leave the small jobs to drift on... Most of the time I don't even notice, but then someone who hasn't visited before comes round and I feel a bit embarrassed as I can hardly say we're renovating still. I hope we might get these things done this year.
@Moreisnnogedag - floor board sanding was one of the few jobs that was less unpleasant than we thought! We paid a local specialist firm to do it and re-finish them and there was surprisingly little mess/dust - almost none, in fact (only did downstairs though - might be worse upstairs). They use specialist sanders with very high quality built in dust extraction - I've heard horror stories about how much mess it makes if you do it yourself, and it actually wasn't all that expensive, maybe £500-700 for a large room, including reoiling and polishing.