You've just moved into a new home and want to be practical about safety, but a quick search serves up expensive, complicated systems — smart locks, floodlights, the works — that don't quite fit your situation. Moving into a new place comes with plenty of unexpected costs you may not have budgeted for — a home security system doesn’t have to be one of them. A budget home security setup works best when built in layers, rather than purchased in one big package.