A blazer plus skinny jeans is the unofficial office uniform for most Silicon Valley women. I wore the combo on a recent casual Friday:
sweatshirt I picked up on sale for $14, a teal Vince Camuto blazer I got on sale at Nordstrom for $50, Madewell skinny jeans I found free at a clothing swap, silver loafers on sale for $40 from J. Crew and a pair of $16 Target sunglasses. Just $120 for the whole outfit, not including the purse.