I live in a late 1950's building and tend to choose 50's items and style also in my home decoration. I like the simplicity of mid-century design but I'm not too strict with decades or styles, as long as everything looks and feels good.
Most of the furniture in my home is either inherited or bought used. Living so close to IKEA I haven't been able to avoid having something new as well. I try to keep the amount of stuff to a minimum, it's easier to clean and I think vintage furniture looks better with some space around them. I've recently developed a growing interest on minimalism and started a never ending project of decluttering the apartment.
My latest interior design project (apart from throwing stuff away) is a little zen garden/beach to the living room coffee table. I love to doodle and the fine sand makes a nice surface to draw with a stick. A zen garden is a fun alternative for coffee table books or flowers. I didn't place any plants in my mini beach since I want to be able to put the dish away to a cupboard from time to time.
I've brought the sea shells as souvenirs from my trips to Australia, Africa and India. I like to have them somewhere so I can look at them during the long cold winters and think about the warm sand on the beach.
The decoration sand I bought from a candle shop, the dish was made by my mother. The chair shown in second picture is Danish design from 1957 and the table is from local flea market, can't really tell the decade, I'm guessing it's from early 60's.