Here's a great place to start:
With moderating your consumption. You can dramatically reduce the size of your footstep on the planet just by making smarter choices in the things you buy and the amount your household uses. It's not something you have to do all at once: just commit to steady, incremental change. Small steps become big journeys over time.
[ Lighter Footstep - The Dirty Dozen: 12 Products You Should Avoid ]
Over the past couple of years Yaty and I have shifted much of our purchasing in the direction highlighted in this article, and none of it has been difficult.
Plastic-wise this article should have pointed out that you need to see what plastic is recycled in your area, for example #5 isn't shown to leech BPA's and isn't Styrofoam (#6 PS) but in our area #5 isn't recycled so we avoid it. Odd that #1 isn't on their list when it seems to be the most easily recycled and hasn't shown any BPA leeching, as far as my research has indicated...
It occurred to me recently to check what the dryer sheets were made of, now I know and it's something else to no longer consume. I think I prefer the Mrs Meyer's liquid fabric softener anyway, much "yummier" flavors...
Plastic Utensils, oddly enough, are tough to avoid. There don't seem to be any other options when it comes to disposable utensils except for chop sticks, and non-Asian restaurants don't tend to have chop sticks. I've tried to figure out how to get take out without utensils, napkins, sauces I won't use, etc. but they tend to be in a groove where each bag gets the same thing, and they'll just throw it in there without thinking.
Cleaning-wise I just switched to vinegar (props to Liam and Holli) with a touch of oil so it's not so vinegar-stinky, and in some cases that even works better than the chemical cleaners.
Maybe it all seems a bit extreme, but it all comes down to sustainability (unless you don't care about your grandchildren or grand-nieces and grand-nephews...)