Transporting CDJS?!

I live on the third floor and have to pass 4 doors to reach my car in the basement. How do you easily transport your dj gear? You don't!

I've tried different solutions;

• Separate case  = Longer setup time and two trips back and forth between car and apartment.
• One large flighcase = Heavy, cumbersome, backpain. Quick setup time.

I'm going to try a big keyboard soft bag, and keep everything hooked up inside it. Maybe reinforce the bottom and a custom plyboard lid.