If you follow this blog at all you have probably noticed that my go-to era is the early forties. I have a slightly more complicated relationship to the period than some other sewing bloggers because I draft my own patterns--but then again, none of us can manage complete period accuracy in any case, not when we're using modern fabrics, modern techniques, and our modern sense of what looks "right." When I'm drafting a new pattern, I usually flip through the vintage patterns wiki and search around on Pinterest for inspiration, but I never stick with any one pattern; I take the neckline on one, the waist detailing on another, and draft up a version that works for my body and tastes.
That said, I've noticed that I take different things from different periods. In the forties, I'm drawn to a very practical, war-work sensibility--slacks, overalls, square shoulders and straight skirts: