Cook Together
Make dinner together instead of going out to the outrageously expensive prix fixe menus. To make it easier, assign a different portion of the meal to each person.
Leave a Love Note
Leave a note in a place where he/she will find it later that day. Lunch box is a classic place.
Walk Down Memory Lane
Collect meaningful odds and ends like movie tickets and vacation souvenirs, and leave them in the car’s cup holder.
Deliver Yourself
Skip the flower-delivery person. Go to the flower shop, pick your own and be your own delivery person.
Give Her the Key to Your Heart
If she holds the key to your heart, why not give her the key to yours? Buy an antique skeleton key on e-bay or another online source (many cost under $10), and thread a velvet ribbon through it.