I received a note asking me about the pattern I used for the square for this baby blanket. I have posted my version of the square I used for this blanket. It is tagged under afghan squares.
I also thought it might be helpful to include my strategy. I wanted to use up all my little balls of yarn and maximize usefullness while minimizing waste. So I worked up a chart for the yardage required for each round of the square. Then I could measure my little "waddies" and know which round was best suited for each one thereby reducing waste.
Using an H hook and worsted weight yarn here is what I got:
Round 1: 2 yards (12 stitches)
Round 2: 4 yards (28 stitches)
Round 3: 6 yards (44 stitches)
Round 4: 8 yards (60 stitches)
Round 5: 10 yards (76 stitches)
Round 6: 12 yards (92 stitches)
Round 7: 14 yards (108 stitches)
My target size was a 7 inch square. I don't very often need the 7th round. The yardages will vary somewhat with the thickness of the yarn. The thicker the yarn and the tighter the twist, the fewer stitches you can get from it. I hope this helps.