I belong to an online community of freelance writers, many of whom work at home (where it’s all too easy to stay in your bathrobe until 1 pm). Recently a group of them decided to do a “fashionista 30-day challenge”: they would make an effort to get dressed up every day–accessories, makeup, the whole deal.

I think this is a great idea, even if you work outside the home. Too often we get lazy, telling ourselves that it doesn’t really matter because we’re not going anywhere special, and it’s too much trouble. Or we get stuck in a rut, wearing the same boring ensemble day after day.

Why should you bother? Well, you’re getting dressed for yourself, first and foremost. There’s no denying that how you dress affects how you feel. In my high school drama class, our teacher used to make us wear skirts for roles that called for them, because they made us act and walk differently. Getting dressed in a flattering outfit, even if it’s just your best jeans, a great top, and your favorite bracelets, will make you feel good.

The key to success, as with so many things in life, is planning ahead. At least once a week, take some time to put together some outfits. Don’t plan on wearing each one on a specific day–you may not be in the mood for polka dots on Monday morning. Don’t worry about being overdressed–unless you’re wearing a ball gown to a breakfast meeting, it’s always better to be overdressed than underdressed. (And I think a ball gown at breakfast could actually be very chic, if you have the nerve to pull it off.)

The holidays are the perfect time to start this challenge, as you’ll be in the habit of dressing up for parties anyway. Dressing up always helps create a festive mood–and let’s face it, during the holidays, what with the family and the shopping and the overeating, sometimes you need all the mood elevators you can get.