Famous moms from Marge Simpson to Kate Gosselin knew the power of a signature 'do. A mom's work is never done, and she's spending most of her time taking care of things that aren't her appearance (like you know... children), so having a go-to haircut means getting ready each morning is a little easier, and so is a trip to the salon. Having a signature cut of your own means all you need to do is keep it maintained, which means seeing the barber for a shape-up every now and then. A close-cropped haircut is preferable for warmer weather, and that whole "side part" thing is a lot easier to keep up with than say, Justin Bieber's weird pompadour thing.
Find a hairstyle that suits you, and stick to it.