Reduce

Use Re-fillable water bottles and limit your purchase of bottled water:  This seems obvious, but how often do you buy pre-packaged water bottles?  Vacation etc.  There are ligitimate uses but using refillable more often is an important step.

Use Re-useable grocery bags:  I forget mine too often.  Once again the more you use them the better off you are, but there are many places that you may not feel comfortable using them or get them more often than you want.  Look at plastic film recycling.  These bags and much more are recycleable if you put in the extra work.