In the chapter on "What Every Girl Needs to Know" we found how important it is that girls should have a good deal of general knowledge of the cutting and fitting of clothes, design, what constitutes right line and beauty, the characteristics and uses of materials, and what is called style, which is really often only good design and good workmanship. Girls should welcome every opportunity to learn skill and judgment in spending their allowances or their wages. The girl who buys wisely is able to make the same amount of money give her twice the return in value which a foolish girl who buys carelessly receives from her ill-considered investments. It is a wise plan, therefore, for every girl to learn a good deal about dressmaking and to be able to cut out and sew many of her own garments. She should also study buying. The best teacher she can have in learning how to buy is generally her own mother. But sometimes her friends will be able to give her help in this way. Girls who work in factories where clothing is made, and girls in shops and stores, learn from their work when blouses, coats and skirts are skilfully cut and well made. But this is part of the general knowledge that every girl should have. One girl can easily help to teach another who in return will be able to assist her friend in other ways. Not to be equipped with this skill in dressmaking and in buying makes the girl largely dependent on others as far as her clothing and appearance are concerned, and in this way she may be placed at a disadvantage both in her work and in her life at home. For the same reason every girl should learn something about the making of hats and of the materials used in millinery. To be able to make her own wearing apparel is one of the principles of economy for the girl. She may be able with this knowledge to provide herself with a becoming hat for a small amount of money. She will know, too, whether the amount asked for a hat is reasonable, and will often be able to resist an extravagance because she will be able to tell that she is being asked to pay a considerable sum of money for an article which is intrinsically not worth the expenditure. The girl who can make her own dresses, blouses and other wearing apparel and who is an adept in home millinery possesses knowledge which has a direct money value. She is much better off financially than any girl who cannot sew and who is not able to trim her own hats.