I'm a beginning quilter. I've tried several things, including two $20.00 1/4" feet especially for piecing. The painters tape (as popover suggested) has been the most successful for me.
I've also found that a zig-zag foot works better than a straight stitch foot. The wider foot seems to hold the fabric over the feed dogs more evenly on my vintage slant shank, (if that makes any sense) so it feeds straighter.
bkay