Something simple

Something simple to think about: if you are living in a tight space that lacks an extra room for your office (hello that one bedroom apartment!), there can be a solution!
Depending on your storage situation, something that I think is very clever is turning your closet into your home office.
Clean out your closet completely, leaving it bare to make your office come alive.

You can measure it, and find a desk that would fit in perfectly like a wall unit.
Depending on what type of doors you have, you may have to take them off. In that case, adding a curtain is a nice touch keeping it soft and intimate, and easy to move when needed.