If you love to paper piece.
At the AQS show in Branson this last week I watched the demo on the Cutterpiller Glow mat. I have seen them before but never thought I would use it much for tracing etc. Well then it was said it's great for paper piecing. Put the fabric over the pattern and cut the size you need, no guessing and no extra wasted fabric and pattern is not cut and a big time saver. A another quilter watching said that's why she bought one, it cut her paper piecing time in half. I bought one right then. I paper pieced a block this morning using it and it is a game changer for me. If anyone has one and don't use it much and likes to paper piece try it out.