The Care and Feeding of a Sub

What is the day to day care of a sub? It is so frustrating to hear the same thing from sub after sub, they feel neglected.
Oh, now before you get your back up that a sub should be focusing on her Master, and if she was then she would feel fulfiled, listen to what I say.
Think about a D/s relationsip. It is a power exchange.  So what does that mean? Everyone has some power, in their thoughts, in their actions and in the way they approach life. A true submissive is a strong person, I don't mean strong physically, or emotionally for that matter. But strong in that she wants, needs to please... to make someone happy. And she is willing to allow someone to direct her in that direction. She also has needs, not all have the same needs. These needs make her feel fulfilled. This is not something she decides, it just is. She has an empty space inside her, a space that needs filled. She is willing to submit to a Dom, with the intent that HE will fill that space.
Selfish isn't it. Ofcourse it is, just as the Dom seeks a sub to fill his void, the need to control and dominate. Two people, each filling the void of the other.