I have found in the last few months that my go-to outfit always seems to start with a shirt. Just last weekend I wore a Topshop casual grey shirt with black cigarette trousers and paired it with nude heels. I felt relaxed but still dressed up at the same time. Also, there is nothing like red lipstick to add a bit of glamour to a basic but tailored outfit.
On a day-to-day basis a checked shirt with either ankle boots or a pair of trainers is the perfect off-duty look.
Here are a few I either own or am coveting. I have included a pair of cigarette trousers which would go great with a lot of the shirts above.