I understand, of course, that home is a place to relax and feel comfortable, and I'm not talking about prancing around in high heels around the clock. I also understand the demands on the time of a busy mother, which often make us unable to wear make-up, groom our nails, or invest in other small details of caring for our appearance.
However, when we go out, even if it's just a quick trip to the grocery store, we don't wear pajamas, no matter how busy we are. We comb our hair (or at least I used to, before I got married and started wearing head scarves!). We might dress casually, but we still make ourselves presentable enough so we won't blush when we meet a neighbor along the way. This, I think, is a minimal reasonable level of decent appearance we ought to maintain at home as well, for the sake of our loved ones.
If your husband works outside the home, most likely he meets young, attractively dressed women every hour of every day. Even if he is the perfect family man, he can't help but notice the contrast when he comes home.
I wrote about this topic before, when I was still single. I must say dressing decently at home was easier while I didn't have an energetic little one to keep me on my toes, but still, my opinion remains largely the same.
I'm not always dressed up at home, but I do make a point to appear at my best at home in front of my husband, and not just when we go out. If I only dressed nicely for other people, what sort of message would my husband get?
In the long run, fueling a husband's attraction will be much more important to a woman's happiness than what other people think of her. I think our efforts should be distributed accordingly.