There’s a basic simple slipper pattern on Ravelry called Recluse. It’s knit in the round, toe up, so you a perfect fit (unless you are me and overcompensated and made the first one very clown-like long even for my big feet). But I cast one on yesterday afternoon and finished it last night – decided it was too long so ripped it back to get rid of some of the length and then made the heel area again and bound off for a second time. Knit with double stranded worsted, so they are cushy and thick and should wear well I think. And not a single seam or need to kitchner – simple bind off and they are done.
And, of course, I think slippers are always best in wild colors!
It still looks sort of long in the photo but since it hugs your foot some of that length is eaten up when it stretches around the foot. I may need to make several pair of these but for now I’ll concentrate on making the second one.