AvatarChris LShoppers Say This Waterproof Under-Sink Mat Saved Them From Spendy Cabinet RepairsFOOD & WINE - Christina Shepherd McGuireCosting just $10, it’s a worthwhile investment. I have to confess — I have a leaky garbage disposal under my kitchen sink due to years of calcification from hard water. Now, it’s not so much of an issue that we need to call an emergency plumber, and we’ve caulked it for a quick fix. However, this …