Does somebody has experience and tips how to effectively organize workspace in a growing early stage startup. When your headcount is growing steadily, flexibili

Does somebody has experience and tips how to effectively organize workspace in a growing early stage startup. When your headcount is growing steadily, flexibility of an open office space is a big plus, but are there good solutions that combine open layouts with private workspace? Headphones, moveable desks, working from home. Anything else? Share your experiences.