Just a word of warning, if you're using rechargeable batteries in your controllers, like the touch controller AAs for example, make sure you have a decent charger. 
The little "mini" chargers that come with a couple batteries often don't actually have any sort of smart charging or load levelling circuitry. 
I bought one, an official "Energizer" charger, and it just has a hidden 18 hour timer. Which means it will happily overcharge your cells and damage them. 
Batteries are advanced enough these days that it is unlikely to cause fire or damage but still keep it in mind. 
Please, make sure you're using a "Smart" battery charger, it'll keep your batteries healthier for longer.

I love you.