Clever

I recently picked myself up a new electric shaver, the Braun 360 Complete. Braun has managed to implement the disposable razor / inkjet printer business model with these things, by creating a consumable that must be replaced each month. That consumable is a plastic tank of an orange-scented alcohol mixture, which is used to clean the shaver each day when you're done using it. It's pretty neat: you just pop the shaver into its "dock", and it runs through a cleaning cycle. When it's done, the insides of the shaver are as good as new. Unfortunately, the cleaning tank costs $6 a month. Very clever, Braun.