A pair of socks for me takes about 70g. I make a few sock yarn blanket squares, about 3g each and then I have a fair chunk left over. Usually 20g or so.
The leftovers from my V junkie socks became a baby hat, not for anyone in particular, it will go in my emergency gift pile.
Baby hats are the perfect project for using up sock leftovers, they take 15-20g , so just right. The fact the yarn is usually machine washable is a definite plus.
I made this pattern up as I went along, it is very simple. It was also a good choice for taking to knit night, just cast on and knit round and around. It took about an evening (I finished the decreases at home).
I do like making bright baby gifts, this is maybe more pastel than I would usually go for, but it is very pretty. I do love purple.