Since "coming out" about our missions aspirations I have had several people tell me that they have always felt called to missions but their spouse isn't. I have got a great book for all of you to sink your teeth into! It is called Godspeed: Making Christ's Mission Your Own by Britt Merrick.
This is a great starting point for missions activities. The whole point of the book is that we are all meant to be "on mission". What we all tend to forget is that God has purposely put us where we currently are. That doesn't mean we won't eventually be called to the far reaches of the earth. It does mean that each of us has a mission purpose where we currently are. It is worth a read. We started it before we started setting things up for our own mission trip and it really opened our eyes to our purpose in little SE Minnesota.
It is available on the kindle, in hard cover, or soft cover on amazon, or check your local library/bookstore!