Originally Posted by lab fairy
When I am first piecing I use a stiletto to help guide the fabric through at the end (I tend to get lax at that point and the 1/4 inch thing isn't accurate unless I guide it). I think some people will use a bamboo skewer, small knitting needle, etc. The point is to guide the fabric at the beginning and end to ensure the seam is uniform throughout.
that's another great tip! I often use a skewer (or believe it or not, a dental pick)! works great!