I've been a freelancer for so long that my work attire of choice is jeans, jogging bottoms or pyjamas . Now going to interviews and have nothing smart to wear on my top half. Any suggestions of something warm and smart that screams "employ me now"?
If you don't need as smart as a jacket, M&S do a cowl necked fairly fitted jumper in dark grey or black for about 18 pounds. It's viscose but feels nice and soft and doesn't bobble when washing. Would be nice with a pencil skirt maybe?
Is a jumper really what you're after? I'd expect a jacket, even a casualish one without buttons (all over the high street). Maybe with a funky necklace perhaps. I wouldn't go woolly at an interview, however informal.
I am with everyone saying jackets. I have been in a similar situation to you and I found that zara blazers were my friend - slightly edgier and less formal than some of the nasty polyester blazers on the high street.
I like the sound of the cowl neck jumper Remus - have been looking for a fine cowl jumper so will be off to have a look for that.
I found that buying the skinny ones were a good idea so that they kind of create a slimming gap in the middle is a good idea (I have small boobs but rowers' shoulders!). I never do the blazers up. Zara is also good for thinnish (almost cardigan) fabric which would be good if you don't want to add bulk. I had to get a few and stalked ebay for them.