Knitting w cotton

I never thought I'd knit with cotton until I joined a dishcloth Yahoo group after hearing about it at knittyboard.com. It was strange knitting with cotton at first. It felt as if I was knitting with cotton string that I remember from childhood when you were supposed to tie parcels before sending them. But that strangeness left when I found out how nice the finished object looked and how well it worked as a dishcloth. Now I'm working on a new dishcloth twice a month through that KAL.
Since people at knittyboard.com were talking about cotton being a nice type of yarn to use for summerwear, I decided to make a summer sweater out of cotton yarn, specifically, Knitpicks Shine Worsted. I'm using a size 7 circular needle and assuming 4 sts and 6 rows per inch -- even though it's actually more like 4.5 sts and 7 rows per inch. (I'm glad I didn't check gauge. Otherwise, the sweater would be too large. It is stretchy.)
I like to keep several projects going at once. I'm making good progress, at least I think it's good progress, on my DH's sweater. I'm almost finished with the bottom ribbing. I like separation between ribbing and the rest of the sweater. So, I ended the tweed stitch with a knit round. Then I knitted another round to decrease the stitch count by about 10%. Then I purled a round and joined it to the previous one the way one joins round to avoid jogs. (Rounds start and end at the center front, and so I had to do something to keep the purl round from jogging.) Then I knit a round before starting the k1p1 rib.
I'm working on a dishcloth from the dishcloth KAL and a pair of socks with a Zokni pattern and a Widdershins heel. By the way, I looked up Widdershins in Wikipedia. Among other things, it means anticlockwise or in the opposite direction from normal -- which is what this heel is. It's a heel-flap heel knit from the toe up with only 8-10 short rows and no stitches to pick up.
We're getting the piano tuned as I'm writing this. The piano hasn't been tuned since we lived in Sweden about 5 years ago. We bought it in Ohio. Then moved it with us to Sweden and then England and finally New Jersey. I'd forgotten how much one of our cats likes the sound of the piano. (It was so out of tune that no one had played it since we moved here.) She's usually the one who hides under a bed whenever anyone comes to the door. Instead of hiding, she's in the living room with the piano tuner.