Hi.. am wondering if Coach sell straps (long/short) only? I have the small black leather duffle shoulder bag. I like the size cos its roomy to fit travel size kits and important items. My only wish is it has a longer strap so I can sling it across body. I know they have 2 other bigger sizes with longer straps but I'm not loving the big size. So, I'm wondering if Coach sell the straps. My bag is black leather with silver hardware. If Coach doesn't sell the straps, am hoping of TPF members' suggestions on how to make my straps longer without ending up with a weird looking bag. Thanks much!!!