Thought I'd post a handful of (meaning three) items from two stores that are on sale and vegan:
(1) Calvin Klein Pleated Dress via Nordstrom: great for more casual offices or dress-down days. The cotton dress boasts an empire waist with a large, but not overbearing side-bow and a slightly flared skirt. Obviously the addition of a cami underneath is a must. The dress comes in the pictured black. Originally $108, it is on sale for $70.
(2) Jane Post for Saks Fifth Avenue Nylon Jacket via (amazingly) Saks Fifth Avenue: clearly a non-work-appropriate item. I really like the all-over ruffle front and the sleek sheen of this 100% nylon jacket. Interestingly, it comes with a nylon tote for storage, though I'm not sure how wrinkled the jacket would get in the tote. It's available in the pictured black. Originally $325, it is on sale for $161.90.
(3) Theory 'Valens - Crunch' Pants via Nordstrom: these pants are made from a combination of linen, rayon, and elastane, which gives them a textured, somewhat crinkled feel and look. Because of the linen, I might suggest these pants are more for casual days or the weekend. They come in the pictured "north sea," black, dark plaster, and white. Originally $245, they are on sale for $147.