Marianne, I have a Lodge one and love it. Here's what I do....
Before using it just like any cast iron I put shortening all over it and baked it in a very hot oven for about an hour.
Every time after I use it, I pour boiling hot water in it, and scrape all the leavings off....then I put shortening in it and use a piece of foil to help clean it more. Maybe someone else has an easier idea!!!!
I do tend to smoke up the house, though, especially if I get the pan too hot before food. Last time I kept the heat at medium, to keep down smoke, but I wasn't pleased with the meat then...I don't have an outside vent and my husband is threatening to buy me a bbq grill! Anyway, I love it, nothing really sticks now...I read somewhere not to pour olive oil in it before you cook something (I used to), now I don't....I'm anxious to see what Steve says.....