It sounds like a significant challenge to do this outside of an urban environment that is well served with "alternative" retailers though.
A friend nearby, leading a similar suburban-supermarket lifestyle to me, tried a slightly different thing for a few months - all single use plastic was disposed of in a very visible location (a clear plastic (doh) sack in the kitchen) as a reminder of how much you've used. Apparently it was very shocking.
Other motivational ideas:
- any plastic you use goes to landfill. In your back yard.
- Collect all your plastic waste. Take the 10% that would on average (globally) end up in the ocean. Chop it up and add it to your meals. See if you like it as much as the seabirds and turtles do.
- Admit that any plastic you send to recycling is just going to get "recycled" into energy anyway. Incinerate it at home instead.