I made this dishcloth so I could use up the final 15.2 grams of this skein of yarn. My plan was to do the increase section until I had 7.7 grams (a little more than half the yarn) left on the skein, then decrease from there, for a zero-waste project. Here are the instructions:

Increase Section:
Cast on two stitches. Knit both stitches.
KFB, then knit to end of row.
Repeat row until the dishcloth is the desired width. In my case, I had a total of 36 stitches.

Decrease Section:
K2Tog. Then knit to end of row.
Repeat row until there are two stitches remaining. For the final row, K2Tog, cut yarn, and pull yarn end through the remaining loop to make a slightly curved corner. This will match the cast-on corner nicely.

Weave in ends.