Today, I am excited to share with you how to transform recycled cardboard into a DIY ornament for Valentine’s decor.  If you are looking for a fun way to recycle cardboard, then you must give this cute heart DIY ornament a try for your Valentine’s Day décor!  This adorable heart ornament DIY is not only a great way to recycle cardboard, but it is also a super budget-friendly Valentine’s Day DIY.  How cute would this DIY heart ornament be hanging on a Valentine’s Day tree with white lights?!  Step 1, How to corrugate cardboard – Cut out a square shape from cardboard and then corrugate the cardboard.  To corrugate cardboard, simply…