How I built a fully-automated system that restocks my kitchen's coffee from Amazon

I've perfected a method over the years for preparing for a grocery store run. I carefully open up the fridge and scan through it several times, letting out most of the cold air. I then do a similar exercise with a few other cabinets in the kitchen. Even though I've tried different mobile apps in an effort get more organized, I have yet to improve upon this simple paper method. Given that I love technology, I'm convinced there's a better way to stock my shelves, but haven't seen the right solution yet.