Wedding Tips: The Little Things
My family always says "I love you" before they hang up the phone and my parents always kiss goodbye before one of them leaves the house. I am doing the same with my husband, plus I find him and kiss him first thing when I get home. It is easy to get distracted by life and not give your spouse any attention. Little loving habits can bridge the gaps in stressful times and serve as a daily reminder that this person is important and special to you.
Source: About Marriage Wedding Tips
This is certainly true; my wife always says "Love you" and I respond "Love you too" - it is very re-affirming and reminds you on a subconcious level what you both have for each other.