Garbage

GB loves garbage. I am constantly forced to watch the garbage Mighty Machines episode along with read "Garbage and Recycling" (Usborne children's books) every night. Just so you know why garbage is always on my thoughts.
First of all, why did Loblaws stop making their recycled plastic garbage bags??
Secondly, why does everything come in packaging?
After I recycle all that can be recycled and compost all that can be composted, my garbage seems to consist of nothing more than plastic packaging.
Every week, I put the plethora of non-recyclable plastic into my kitchen garbage, a white plastic bag, and then I put that small plastic garbage bag into a large black garbage bag (along with all the other small plastic garbage bags from throughout the house). Then I put the whole thing on the curb.
Did you know it takes 800 years for a plastic bottle to decompose?
If I had the power to make one new law, it would be this: All packaging must either be recyclable or biodegradable.
It just makes sense. So why hasn't someone done it?