My sheets do not live a glamorous life. They are usually either unmade on my bed, wadded up in the laundry, or half-wadded/semi-folded and shoved between the extra light bulbs and towels in my "everything closet." A neat, organized homemaker I am not...but I have one minor skill that makes me feel slightly more Martha Stewart-y: a simple technique for folding those amorphous fitted sheets - the ones most responsible for the scrunched up mess. You'll notice, however, that the sheet in the how-to photos is rather wrinkled. If my sheets are clean and folded, I consider myself a step ahead of the game...I definitely don't have the time or inclination to iron them, too! Maybe someday. For now, I'm very proud of my wrinkled-but-folded stack in the "everything closet."
It's easiest to do this on top of the bed, so that you can spread it out. But once you get good at it, you can do it in your hands, the way you fold a flat sheet standing up.
The trick is to take the pesky elastic part out of the equation. Start by finding the tips of each of the corners - the top of the seam, that sits at the corner of your mattress.
Pinch and pull each corner and shake it a bit so that the outer shape of the sheet looks rectangular and the elastic forms a circle inside (below, left). Holding the corners in this way, bring the two corners on a short end of the sheet together (below, right), matching the end of the one seam to the end of the other seam.
Repeat this with the remaining two corners, so your sheet is now folded in half, lengthwise. The elastic will still come to the edge in the middle of the long end. So along the long edge, pinch the fabric about 8" from the elastic (the length of that seam in the corners), and meet one side to the other side, tucking the elastic in the middle (below).
You should have a somewhat rectangular shape, with none of the elastic showing.
Now fold this in half lengthwise, as you would with a flat sheet, and in half again.
And viola! Way less blob-ish, no? Oh man, if I had ironed that sheet, my mom would've been so proud of me...