I purchased a Kindle Fire for my 13 year old son last week. I would like to have some kind of control on what my son puts on his device and/or purchases. I have set him up with his own Amazon account but have found he cannot even download free apps without a 'payment option'. Does anyone have any suggestions or help with this? I think it would be perfect if he approaches me for something and I could just purchase it or download it with a password without him (or anyone else) having access to everything.