Write "Open When" letters for your significant other. Let them know you're there for them even if you can't be with them. Add pictures, gift cards and more to make them extra worthwhile! Examples: Open When: You're Happy, Mad, Sleepy, Hungry, Stressed, Mad at me. You want to know how much I love you, Miss you, Think about you. You need motivation. You want to reminisces, come home, give up.