easy on the wallet是少花钱的意思.比如这样一句：Modern shoppers tend to buy thoughtlessly,without realizing that buying locally and seasonally not only benefits the local economy,it is also easier on the wallet 现代的购物者往往买东西不细心,他们没有认识到,买本地产品和当季的产品不仅有利于地方经济,而且也少花钱.