You will also need:
1 Pair Of 3.25mm (US3) Knitting Needles.
1 Pair Of 4.00mm (US6) Knitting Needles.
2 (3:3:4:4) Buttons for the V Neck Cardigan.
4 (4:5:6:7) Buttons for the Round Neck Cardigan.
3 (3:4:5:6) Buttons for the Collared Cardigan.
Stitch holders.