Switching bank, energy or broadband provider has never been simpler, with new consumer protection rules and streamlined switching services stripping away much of the friction that once deterred households from shopping around. For the average consumer, this is a modest personal finance story. For landlords, portfolio investors and property managers, it is something more significant: a largely underused lever for protecting yields at a moment when operating costs across the private rented sector are rising faster than rents in many regional markets.