I love the style of messenger bags, hands-free and great for security especially when shopping and travelling but I did not want to buy any more purses/handbags. This practical black shoulder bag had a belt buckle that was usable and as I had a black belt that was not being used I added the belt to make a longer strap. now my shoulder bag has been converted to a messenger bag that I use daily.
If your bag only has a strap but has open metal hardware that links the strap to the bag you can still convert it using a long belt or two (if you don’t have one handy, hit the thrift shops) or use some tough woven strap. Simply sewing them around the hardware with really tough cotton.