For Valentine's Day I made Ryan this "365 Reasons Why I Love You" box. The idea is that every day of the year he reads a reason why I love him.
Inside there are literally 365 reasons why I love him. Trust me when I say that writing 365 reasons is a VERY difficult task no matter how much you love someone. Sweet gesture, but you will get tired after hitting 100 reasons.
This idea can be used in a lot of ways. I've seen it done using jars, books, etc.