a really good tip is to park in the end bays at shop & park right over next to the kerb, or park with 2 spots clear either side of you, then before you shut your car down crank the steering wheel to full lock, you will fing that people are less likely to park next to you because they think you are gonna swing into them when exiting, i mean i personally would avoid parking next to a car with its wheels on full lock for that exact reason.... reverse psychology FTW

i also write down plates of cars that are parked in front of me when parallel parked (like in west perth) especially if they have a tow bar or its a big 4wd