Hi all!! So I tackled the Buttercup Bag (tutorial/pattern available at http://www.made-by-rae.com/2009/02/free-buttercup-bag-sewing-pattern.html). My first attempt ended up being more of a makeup bag then a purse and was a little floppy and wonky along the top. I altered the pattern and made the bag about 3" longer. I also used a medium weight interfacing on the body of the bag and heavy weight along the top piece to make it stiffer. The only thing I still would change is the length of the strap, which was twice as long as the pattern called for but was still too short for me.
Anyway, hope you enjoy! If you have taken a crack at this pattern and have any other suggestions, please let me know!