My sewing machine came with a few doohickey type of feet that I didn’t even bother looking at for a long time. But, surprise, some of them are actually useful. One of my favorite is the Rolled Hem Foot – which start at around $10 on ebay if you think are going to be doing a lot of rolling of hems and don’t have a free one lying around.
Basically, it makes a magic little hem for you in one go – no ironing, no fuss, no muss. I don’t know what muss is, actually, but I’m pretty sure there’s none involved. It’s good for lots of hemming – finishing curtains, the inside flap on pillowcases, the bottoms of skirts, the edge of a silk scarf, whatever. And they come in different widths, so you can get the one that suits you.
So, it took me a while to figure out my foot. But here is my trick – I use both hands to feed the fabric into the foot. I use my right hand to fold over the top of the hem so that it is always just touching the left guide (see below). If you let it stray too far to the left, it pulls through too much fabric and messes your hem up all to hell. CONSTANT VIGILANCE is required.
The other thing I do is use my left index finger to make curve my fabric as well as keep it steady as it enters the foot. If I don’t do this, my fabric will sometimes randomly jump around and put itself in the wrong place and mess up my hem.
I guess my main advice is to test your rolled hem foot before you use it on something important, and then try and use it as often as possible, cause it’s a real time saver.