I bought my old jeans and built from thrift store and they have special day were everything's $.25 so that's really fun
Step 1: Step One
You can use adult sizes if you are making a computer bag or re-usable grocery bag.
You can also use children size jeans to make purse size bags shoulder bags messenger bags. It's very easy
Step 2: Cut
You can use a rotary cutter or you can use scissors make sure whatever you use that is strong enough to cut the denim
Step 3: Finishing Touches
In my example I cut out some red denim and applied it with fabric glue and I'm also going to and the handles are from an old belt.
Step 4: Optional
or you can use like I did a piece of denim and what I'm doing is sewing a piece of this onto the back of the jeans cut a hole to fit in the button so that we can have a closure