Double-Lock Doors: Always double-lock UPVC doors by lifting the handle and turning the key. If your door has a euro-profile lock that protrudes, consider upgrading to a "shorter" lock that cannot be easily snapped.

Window Restrictors: Use window restrictors to allow ventilation while preventing anyone from opening the window wide enough to enter.

No "Fishing": Never leave house or car keys near letterboxes or cat flaps where they can be "fished" out with a hook. 

Timer Switches: Use plug-in timers for lamps and radios to make your home look occupied when you are out.

Social Media Caution: Avoid posting "real-time" updates about being away on holiday, as this advertises an empty home to potential thieves.

Curtain Habits: Close curtains or blinds at night to hide valuables, but keep them open during the day; permanently closed curtains can signal an empty house. 

Defensive Landscaping: Keep front hedges low (around one metre) to ensure visibility from the street, and plant thorny shrubs like Berberis or Hawthorn along back fences as a natural barrier.

Gravel Paths: Use gravel for driveways and paths; the noise it makes underfoot is a significant deterrent for someone trying to move quietly.

Lock Outbuildings: Ensure sheds and garages are locked with high-quality padlocks. Never leave ladders or tools out that could be used to break into your own home. 

Lighting: Install motion-sensor exterior lights to eliminate hiding spots.

Property Marking: Use UV pens or forensic kits to mark your postcode on electronics. Register these items for free on the Immobilise National Property Register to aid recovery if stolen.

Video Doorbells: These act as a visual deterrent and allow you to see and speak to callers even when you aren't home.