Bring 2 subjects to a class at once.
Here's how to do it!
Let's say you have English, Geography, Lunch, Math, and Science.
Bring English and Geography to English. On the way to Geo, drop English off and pick up Math. Pick up anything you didn't finish on your way to Lunch and finish it then. Drop it all off, leaving Math and Science in your bag. On the way to Science, drop off Math. Pick up any subjects you have for homework and go home!
If you have homework in a subject, try to bring home as little as possible. For example, if all you need is your binder and your notebook, then just bring those.
Or, to make it even easier, make a Homework binder! Put dividers according to your subjects, throw your agenda in there, and you're all set!