Our class came up with a bunch of ideas for how to keep your bag cleen

Only bring books, and other heavy things on the day that you will need it
Don't put random things in your bag, like toys, and (for girls,) hair things
Try not to bring an over full water bottle, because it will put too much on the bag
Think hard about what you want in your bag , if it doesn't need to be there, don't keep it in there 


If you can, empty your bag out each week, and work out what you want to keep in it.
Put your things in your cubby
Keep your things at home (eg. reading log, you only need it once a week)
For girls, if you have too many hair accessories at school, just have one thing to where at school when you need it