Vinegar, Salt, & Lemon
Whether your drains are clogged or have a nearly indestructible buildup of grime and gunk, this trick will do wonders. To get started, pour equal parts salt and vinegar in a bowl, then half a part of freshly squeezed lemon juice. Pour it into your sink, allowing the solution to sit for up to 30 minutes before following it with a full pot of boiling water.