To get the bug stuff out of the holes, get some square tooth pics and cut them in half with some good scissors or a pocket knife. The cut end will have a square end and is about the right size to fit in the holes. The square shape makes a great tool for removing the debris. Stick the square end in the hole and twirl it between your fingers a little bit. This kind of reams out the holes and removes the bug stuff. You will find this works pretty well except for the shoulder areas where the jacket is made with the perf leather sewn over a layer of solid leather. This presents a problem since your toothpick reamer tool won't go all the way through and the bug stuff can't come out easily. For these areas, get your self some black shoe cream. Dip the toothpick into the shoe polish and ream out the holes. Even though the toothpick might not dig out all the bug stuff, the shoe polish will blacken the hole and make it look new again. With a little patience, you can clean up a pretty gross jacket in about 45 minutes.