Kitchen Tip: Extra Lids

Here's a quick kitchen tip to share with you.  I keep extra lids for the most common kitchen products we use so when I discover the milk lid is missing or I find that someone put the chocolate syrup away without cleaning the pop-up thingy, I simply replace it with a clean lid from my stash.  No crusty ketchup or mustard lids in my fridge - nope.

Do you have any cool kitchen tips to share?