Reducing solid waste

Some time ago, Austin's mayor signed the Urban Environmental Accords and now we seem to have the goal of achieving zero solid waste by 2020. Austin's Solid Waste Services has a list of suggestions (PDF) on how to reduce your waste. It includes:

[at home] Buy in bulk and leave packaging at store
[at your school/business/place of worship] Buy in bulk and ask suppliers to take back packaging

Okay, true that recycling in bulk is more efficient*, but...this is essentially just shifting your waste. Maybe it will convince suppliers to use less packaging?

* I forget what it was, but I was recently looking up the recyclability of something and learned that you have to test it to find out, and it's only worth testing if you have a huge amount to recycle.