365 reasons why I love you jar. Both have their own jar and write once a day one thing they love about the other. On their anniversary/birthday/valentine's day/christmas/whatever the occasion, open the jar and read what the other person wrote
Deep clean your water bottles if they’ve started to smell a little moldy. Use a vinegar or a very weak bleach solution, then rinse the bottle well and put a tablespoon of baking soda in the bottle. Top the bottle with hot water. Let it sit overnight.