I'm so lucky to have a long asphalt drive under mature pines, because whenever the pine needles fall I can run out with my rake, scoop up fresh mulch and remulch the front beds. Extra mulch is piled up for later use (and becomes the favorite cat napping spot).
Weeding the ground and mulching your plants for winter has oh-so-many benefits. First, just the action of getting beside each plant long enough to weed (and it doesn't take that much time) gives you the opportunity to notice what is going on with your plants. Are they ready to divide? In Georgia, now would be a fine time to divide perennials. Would cutting off the spent flowers make it more attractive? Would moving this plant to a different spot be wise?
Second, it looks good - really good. If you want your home looking great for a party or the holidays or, even more important, to make you happy, then a fresh layer of mulch is a quick fix. It unifies the landscape, makes a clear definition between lawn and beds and freshens the whole garden. That and a couple flats of annuals can work wonders.
But mulch can also keep your garden healthy. It's like putting down the winter blanket for your plants, keeping soil temperatures constant for plant roots (which grow year-round in Georgia). Mulch also stops rain from splashing soil onto the plants, eroding soil, or creating that hard crust that can form on top of soil. It discourages weeds from growing and makes them easier to pull when they do grow.