Whilst starting a new jigsaw is exciting, the sorting of pieces can be monotonous and a little boring. Some how I always manage to miss at least 1 edge piece and find it halfway through completing the jigsaw. I also don't very often buy brand new jigsaws. We have a very good active Facebook market place running with people selling jigsaws so I always buy from there and I happily sell mine on their too. Of course when you get a second hand jigsaw then some people are very good at putting the pieces in a plastic bag inside the box, some are not! However, this person kindly put everything in a plastic bag but also separated the edge pieces! To me, half the fun is finding the edge pieces at the start. I almost made the decision to mix everything together and fully start myself. I didn't, I accepted the found pieces, just wish they had fully separated the pieces, not sure what the point was of separating the edge pieces and then mixing in a few middle pieces in the same bag?