Every homeowner knows the sinking feeling when the sink starts to gurgle or the shower drains a little too slowly. Trust me, I’ve been there, and it’s a scenario I’d rather avoid at all costs. That’s why I’ve come to appreciate the vital role of routine maintenance for our drains. Just like keeping up with your car’s oil changes or your yard’s seasonal landscaping, preventive care for your plumbing can save you from larger — and often more expensive — problems down the line. In my quest for a cleaner, greener home, I discovered some incredible natural remedies that not…