What term of endearment you call your husband? your wife?

Philippines
September 6, 2010 8:13am CST
Good day to all, Some husband & wife, call each other "Sweetheart" or "Honey". Wherein they loved to use sweet words to call their loved ones. However, there are some exceptional instances, where the husband & wife, just call each other on their first names. I wonder sometimes, if this is really necessay. To call and use a term of endearment to your husband or to your wife. What term of endearment do you call your husband / your wife?