14. The Ammonia Treatment

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If you aim to keep your ride in flawless shape at all times, then the best advice out there is to keep a bottle of strong and efficient window and windscreen cleaner in your truck all year round – and when said bottle is filled with a magical potion that will leave your car spotless in minutes, even better. Here’s what you need: 60 ml household ammonia and 1 liter water plus a watertight cap. To apply the solution, use a regular sponge; as for drying, rely on paper towels or a soft cloth to do the job.