Don't forget Little Feet, they need all the warmth they can get too. Here is a simple pattern for baby sizes. It takes about 25 grams of sock weight yarn or use up those leftovers. They make great baby shower gifts as well.
SIZE: 6 MON (adjust foot length for larger size)
NEEDLES: 2.75 MM NEEDLES DOUBLE POINT SET
YARN: 50G BALL OF KROY SOCKS
Cast on 36 sts. Divide sts evenly onto 3 needles. Join in round. Work in K2/P2 ribbing for 6 rounds. Cont in K rounds only, until work meas 4".
Make Heel- K9, turn, P18. Leave rem sts on spare needles and cont on these 18 sts only for heel as follows-
Next Row- *SL1, K1*, rep *to* across row, turn
Next Row- Slip 1st st, P to end, turn
Rep last 2 rows until heel meas 2.25" ending with 1st row.
SL1, P10, P2tog, P1, turn
SL1, K5, SL1, K1, PSSO, K1, turn
SL1, P6, P2tog, P1, turn
SL1, K7, SL1, K1, PSSO, K1, turn
SL1, P8, P2tog, P1, turn
SL1, K9, SL1, K1, PSSO, K1 = 12 sts
Pick up and K 8 sts along side of heel, K across 18 sts from spare needle, pick up and K 8 sts along opposite side of heel, K 6 sts, slip rem 6 sts onto 1st needle and divide sts as follows- 14 sts on 1st needle, 18 sts on 2nd needle, 14 sts on 3rd needle = 46 sts. Dec as follows-
1st Rnd-(1st needle) K to last 3 sts, K2tog, K1, (2nd needle) K across, (3rd needle) K1, SL1, K1, PSSO, K to end
2nd Rnd- K
Rep these 2 rnds until 36 sts remain. Cont even until foot meas 3" from picked up sts.
1st Rnd- (1st needle) K to last 3 sts, K2tog, K1, (2nd needle) K1, SL1, PSSO, K to last 3 sts, K2tog, K1, (3rd needle) K1, K1, SL1, PSSO, K to end
2nd Rnd- K
Rep these 2 rnds until 16 sts remain. Cut yarn and graft rem sts together.