Learning colour at home.
Bought a 30 metre roll of HP5 and a second-hand bulk loader. It works out at about half the price per roll. The only scratch I have had so far came from a reused cassette with grit in the felt, so I now throw old cassettes away after three uses.
Colour at home is less scary than I thought. A cheap sous vide stick keeps a washing-up bowl of water at 38 °C, the kit chemistry lasts for about twelve rolls, and timing is the only thing that really matters. My first roll came out with a slight green cast that I blame on old blix.