Limit salt and other sources of sodium in your diet by not adding salt to foods when cooking or eating, ordering unsalted foods at restaurants, and buying low-sodium foods.
Other techniques employed include buying securities in weak markets and selling into strength in order to further limit transaction costs.
其它应用到的技术包括：在市场疲软时买进证券而在市场强劲时卖出证券，这样可以进一步地限制交易成本。
3
Some people may not have too much awareness about money and self-discipline is not good, so they often cannot help stopping buying things without a limit.