Buy a ball of yarn.......

Whenever I visit my favourite little yarn shop I always buy something which I have no particular plan for but just like the look of it. So it was when I bought just one 100gm ball of King Cole Flash in shades of yellow, pink, blue, orange...... One thought was a baby cardigan - it would easily make a small one - possibly even up to about 12 months if the right pattern, but I wanted to knit something mindless so I got a pair of 4mm needles and decided to go with the flow.

A vague pattern for a baby blanket using one ball of yarn and some bits and pieces.

Cast on 10 stitches and knit 20 rows. Cast off but don't break off the yarn

Turn this little square one turn to the right then pick up 10 stitches along the side edge. Knit 20 rows. Cast off.

Turn again. Pick up 20 stitches and knit 20 rows. Cast off. Turn....

Continue until you run out of yarn.

Using co ordinationing colours pick up stitches along each edge and knit 20 rows, increasing at each end of each right side row. Cast off and join corners.

Result:-

Just right for a buggy blanket or a car seat blanket.