I darn blue jeans for my son and husband. They wear out at the pockets from taking wallet in and out. The rest of the pants are perfectly fine so it makes sense to darn the holes and extend their life. Not easy to do because of the flat felled seams that form the pocket, but over the years I've figured out a pretty good system. I also mend our American flags that get whipped around pretty good each day. Just finished one yesterday and used my walking foot, great tool as it held on to the slippery fabric and stitching was very easy. With prices the way they are today you have to try and extend the life of clothes, etc.