Reply to Flying with a controller

So I'm flying back home next week and I want to bring back my controller to play with it, practice, etc. However, I'm not sure how to protect it from breaking. I don't have a big enough backpack or a travel case (and not planning on buying one cos I'm switching to cds), so I'll have to put it in the suitcase. I'll cover the sides with the styrofoam that came with it and I'll wrap what's left in bubble wrap and/or clothes. I'm also believeing of putting it in the original box, but I'm not sure if that'll fit. Does anyone have any more tips on how to protect it? Cheers.