Hey Mary...First off, I was wondering in what general region you and your geraniums live. This could give me a better idea of what you would need to do. I'm going to assume that you live in a more Northern climate, since many folk in warmer climates don't normally have to deal with overwintering plants. My recommendation to you is to pot those geraniums in containers with a light and fluffy potting soil. Be sure to thoroughly water them after you've repotted them. It's important that the potting soil drains well (water should not be pooling on top of the soil line for more than 1 minute). Place these containers indoors in the sunniest position you can find. You may want to pinch off any new shoot growth since they will be weak stems (that's because they won't be getting as much light as they should be indoors). When spring rolls around, give them a light fertilization and then move them back outside.