Moth-proof your woolens. If things look cheap, they are no bargain. Plan your shopping. Never, never buy clothes on impulse, or you've lost the chance to buy it on sale. Don't buy more clothing than you really need in a season.
Kids have a way of outgrowing things, and it's cheaper to wash more and buy less.
Coordinate your clothes. This is easy with uniforms. With civilian gear, stick to a few basic color combinations. Wear work clothes when you work, sports gear for play and more expensive dress clothes only for special events. Many a good shirt has been ruined by painting or cooking in it.