When used incorrectly, pesticides can pollute water. They also kill beneficial as well as harmful insects. Natural alternatives prevent both of these events from occurring and save you money. Consider using natural alternatives for chemical pesticides: Non-detergent insecticidal soaps, garlic, hot pepper sprays, 1 teaspoon of liquid soap in a gallon of water, used dishwater, or forceful stream of water to dislodge insects.
The depreciation factor can help you out when you buy more expensive quality tools. A high-quality tool usually will depreciate less, as a percentage of its purchase price, than a lower-priced tool. This means you can use that quality tool over the years and, if you resell it, you recover a higher percentage of its cost than with a lower-quality tool.