Gel marking pens for half-square triangles etc.
I need a good pen for marking the lines for half-square and quarter-square triangles. I have a terrible time making it straight and also not moving the fabric. I saw some gel pens in Nancy's Notions catalog and I am wondering if any of you have used them, how do they work? Will they disappear easily in case they happen to show? I know for the triangles they should not be visible but just in case....you know. Thanks in advance to all who may take time to answer and give me some needed advice.
Also, I have a problem sewing a 1/4 inch from the drawn line. I can't see how to make it exact. Am I making sense? I hope so. Anyhoo, any tips anyone can give me is greatly appreciated.
I hope everyone is well now and had a good holiday and was blessed to be with their loved ones as I was. Welcome, 2015!