Your freshness is important to your husband , may be not to you, if he cannot find freshness at home he might start to look for it outside the home. Now don't start a war over it. It has happened many a times, I agree not all husbands will do that.
Now Supporting yourself , is it not duty of your husband to support you ? Since when a wife is required to support herself ?
Mirch, sometimes freshness is not the first priority to a couple, being not fresh doesnt mean that one is ugly or old, freshness could be given back to one by a facial/message or a holiday. A husband can look outside out of many reasons, sometimes he doesnt even need a reason. So this is not valid to say a fresh wife garantees a husband who will not look outside.
As about supporting myself, I have been doing this from my adult years and its a habbit now, anyway its a support both way.