Yes, I've read it, and I appreciate her approach. I think it's important to remember that recycling is not a salve, to pay attention to the amount of shit we bring into our lives, and to consider the amount of resources used to produce one bobble. Single-use items are ridiculously wasteful unless they are necessary (like in a medical context). I read the book some time ago, so I don't remember all of the specifics. I preferred My Plastic Free Life, since it was less concerned with aesthetics. It's key to remember that we can't buy our way to a "green" life. Not buying stuff is the mustachian and environmental thing to do.
Primm, you are not single-handedly destroying the planet, and I hope you cut yourself some slack. The plastic in your life is necessary. Moreover, taking personal responsibility for waste (how much you generate and how you dispose of it) is great and plays a political/economical/social role, but it deflects the spotlight from institutional entities (governments and corporations) that have a much larger environmental impact and ability to affect change.