I have my own ways of managing to look at least half-human when I'm stricken with the lazies. They make up my sweatsuit alternative; a term I first heard on darling old Tim Gunn's show. These tips may or may not work for you, but let me share them with you anyway:
1. A good long black coat hides a multitude of sins. Worn closed with black bottoms, the world sees chic all black and not the salad-stained Sugababes t-shirt you wore to bed last night.
cashmere coat with rabbit fur-lined pockets by Assembly New York, Raf Simons x Eastpak weekender2. Loosen up in luxe fabrics. Precious prints and soft silks don't only feel good to touch, their wonderful drape also makes them look great worn loose.
Dries Van Noten printed cotton linen jacket, Assembly New York silk shirt3. Non-athletic athletic pants. A lot of designers are now making sport-inspired bottoms cut a little more flatteringly than your regular sweats, but nearly just as comfortable. Y-3 always makes a good pair.
the signature Adidas trefoil on my favorite Y-3 ninja pants4. Bring out the bijoux. I'm not recommending you wear a long necklace of tiny silver bells on a lazy day (I'd caution you against wearing one, actually. The heaviness and repetitive chiming did give me a baby migraine...) but what I'm trying to say is that a little hint of bling, say, a nice watch or a subtle ring, would help perpetuate the illusion that you took some time to put yourself together and look polished.
belly-dancing belt from a costume store worn as necklace5. Find your favorite shoes. You may have to go through tons of pairs before you find those that will allow you to walk for miles without fracturing foot bones, but that you'd still consider stylish and smart. But once you find them, I highly recommend buying more than one pair.
white-soled Dr. Martens lace-ups, perfectly broken inphotos by Pop Bop and Snap