I have one idea related environment, I think its not totally benefit at koodo company but end of the day koodo company might be get lots of benefit.
My idea is like now a days you are giving 10% off if anyone comes with their own phone. but my idea points is " if anyone comes with useless mobile phone then they also get 10% or 5% off in new plan with koodo. But on this you have to terms and condition only one person take only one plan on his name, otherwise people have so many useless phone at their home so only one phone allowed at one plan." and due to this koodo company gets lots of new plan and also you can save environment collecting by recycle old useless phones.
And might be this is scheme first time ever in mobile plans in canada.