I'm a girly girl and I almost always wear matching lingere. It just makes me feel good. When every thing else is going to h#ll in a handbasket at least I have one thing pulled together.
If I really want to go all out, I'll wear some wildly inappropriate lingere. There's something about only you (and maybe DH) knowing what you've got on under that sensible outfit. Sometimes it's a crazy expensive garter set to dinner, sometimes it's a totally trashy, cheesy bustier under a business suit. But something that reminds you of sex all day long keeps the slow burn going. Nice nighties are good too; it feels so much better to wear something slinky vs. a ratty tee shirt. Just invest in a nice robe to cover up with if you have to tend to the kids.
K