I have a job interview in London in a couple of weeks. The role is for a home based technical financial/software support position for a US company. I am a 49 year old SAHM, 5' 10, size 12-14, with short spikey silver hair and have no idea what to wear. I have one black trouser suit, otherwise some smartish-casual dresses which I would wear with boots or ballet pumps. I am finding it hard to decide what to wear because the role is not office based but obviously I want to look smart for the interview, and also am not sure if US company would expect a less casual look than a UK one. Any suggestions for the type of outfit I might wear?