J.M.
Just do it! Once things get going you will be into it. Just make a point to do it...in the morning is fun and exciting and a great way to start the day, especially when you know you are going to have a crazy day and be exhausted when it is over.
Make a date night if you have to, send the kids to their grandparents for the weekend...do something, anything to reconnect with your husband. Good Sex = Good Marriage!