I would like to issue a challenge to the moms with missions and temples, or even just modesty and cleanliness in general, in their dreams for their children's futures.
1. We need to put full* sleeves on our daughters, yes, even our newborns. The younger we start this habit the less they will fight us on it when they are older. We need to teach our daughters to protect their sacred bodies from the eyes of anyone but their husband. They are not responsible for the thoughts of others, but they are responsible for their own modesty and the blessings that come from it.
2. We need to make sure our daughters are not showing any cleavage at any time. We need to make sure that even if they bend over, no cleavage is showing. Our bodies are sacred. They are not to be shown off to anyone looking.
3. We need to dress our boys in white shirts for church. This may sound odd to some, but boys who want to go on missions should look like missionaries. This is especially true while they are passing the Sacrament. Again, the younger we start this habit, the less they will fight us on it. It is called "Sunday Best" for a reason.
5. We need to teach our boys to keep their shirts on, even while lounging around the house. This way they won't miss taking them off after they have gone through the temple.
We all want the best for our kids and when temples and missions are what that is, there is nothing better we could do for them than to help them practice the standards that will be expected in these things. So my challenge to myself and to others who share my goals is this, don't just teach them to be modest, teach them to be temple modest and mission ready.
On a final note, if you moms have not yet entered the temple and would like to practice these standards yourself, I cannot recommend a company more for shirts than ModBod. Their cap sleeve shirts make wonderful undershirts and they have a wide array of full* sleeve, three-quarter sleeve, and long sleeve shirts to choose from.