I can't stand them. I think they're sloppy. The 'pink' ones from Victoria's secret can look OK for gym/coaching. I wear soffes and decent looking tshirts working out, like in gym class or coaching when it's warm. I also only wear jeans 2-3 times a week, the rest is skirts, dresses, and bermudas. I run track, and I HATE the sweats we sell, but I wear them when it's really really cold, over my underarmour of course. Hollister has some good stretch pants that look decent. My sweats always match perfectly when I do wear them. But working out is usually underarmour heat gear or cold gear depending on the weather, and cute shorts, sometimes spandex because they help your psyche-they 'feel' fast.
Here's a few tricks for when I'm feeling lazy: I have thermal leggings-so comfy you could wear them as PJ's(and I have), then either a jean skirt, or just an 'athletic' cotton skirt, with a fitted hoodie. You can even wear slide-on tennis shoes or flip flops or Ugg-style boots if you're into that.
Also, invest in moccasins in a unique color. They're like slippers, but much cuter. Mine are a soft shade of pink. I have a pink polo, a pink and white striped button down, a green and pink argyle sweater, and a pink v-neck that I mix and match with various neutral sweaters with my favorite jeans, and I feel so happy.
Skinny jeans tucked into ugg-style or knit boots look really good and feel great. I have jeans, rich brown ugg-esques, and one brown hoodie, and one brown oversized sweater. Throw that on and you look great and feel comfy. Also I'll wear jeans, black knits, and a black longsleeve or black cami with something over it.
Tonight, my body is tired and I'm exhausted, so I'm wearing my favorite skinny jeans, pink mocassins, my pink polo, and a 3/4 length dark gray vneck pullover. Matching pink headband of course, with hair probably in a high pony.
I hope I helped to beat the sweatpant syndrome.