Sewing a Perfect Seam

Blue painters tape is fantastic, but even better, Molefoam!  It gives an excellent ridge for the edge of your material.  One of my students commented that it would leave a residue behind, but if you use painters tape WITH the Molefoam there is no residue.  When sewing 1/4" seams, this is especially nice to have!

Molefoam from Walmart foot section, and this was a little thicker than what I'm used to buying, it was perfect.

Peel back the backing on the Molefoam and lay the non-sticky side of some painters tape on it.  Trim the edges and along the edge of the tape.

Stick the blue sticky side down along the guide on your sewing machine.

Put your presser foot down so you get as close to the needle as possible but without placing over the feeds.

See?  Perfect 1/4" seam.

When you're not using it, just stick it on the side of your machine.  When the tape wears out, you can just replace it.