I've bought all the fabric and pellon to make my first bow tuck but am just wondering if these purse are slouchy when done or after being used for a while or are they stiffer? I was just wondering because by accident I bought some interfacing and was wondering if it would be ok and make a stiffer bag if I used both the interfacing and the pellon? Also never having put a zipper in anything would this be hard to do and what length zipper would you need? Sorry for so many questions I'm new to sewing things like this and to be honest I'm kinda scared :shock: