I leave for Mexico on Monday!!! I was a huge procrastinator too, and then luckily my school where I work went on summer break and I had all of last week to get the move on with this stuff! It takes time, start early!!! My wedding is July 1, 2011. The biggest thing is starting early so you can order things online and have them arrive on time.
Try the words "reusable grocery bag" or just "grocery bag" or the words "strawberry" and "bag" Some will show up that are more $$$, it took a while to find these that were 10 for $18.