Among all the small space advice I can give, this is my no. 1 - Live what you love. First and foremost, when it comes to small space living, one must identify with what they surround themselves with. There is only so much space so you might as well fill it with the things that make you smile.
Beyond that, you want to make sure that how your space functions matches that as well. Meaning if you are an entertainer, layout your space with seating and a flow that allows for that. If you love to cook, focus on making the kitchen the central hub. Perhaps you'd love to bring your yoga practice out of the studio and into your home from time to time; put your furniture on castors so you can roll then away and roll out your mat. Whatever the case, your place should reflect who you are and function for what you love! Live what you love.