Hi there! I’m writing an article about making homemade weed killers and would appreciate your professional input. I am looking for a lawn care or weed control pro to answer the following questions: 1. What are some common mistakes or safety hazards you see homeowners make when handling 20%+ horticultural vinegar? 2. How long does salt from DIY weed killers actually persist in the soil, and how difficult is it to remediate that area for future planting? 3. Since homemade sprays typically only burn the foliage, what is your recommended strategy for destroying the deep roots of stubborn perennial weeds? 4. Why do so many DIYers see mixed results or total failure when using corn gluten meal as a pre-emergent? 5. Can frequent use of household items like borax or baking soda cause permanent damage to a yard's soil chemistry or pH?