在购物时，她总是精打细算，不浪费任何一分钱。

Zài gòuwù shí, tā zǒng shì jīngdǎxìsuàn, bù làngfèi rènhé yī fēn qián.

When shopping, she always calculates carefully and doesn't waste a single penny.

他在旅行中也一直精打细算，力求节省开支。

Tā zài lǚxíng zhōng yě yīzhí jīngdǎxìsuàn, lìqiú jiéshěng kāizhī.

Even when traveling, he always calculates carefully to save expenses.

这个家庭过得很节俭，一直精打细算。

Zhège jiātíng guò de hěn jiéjiǎn, yīzhí jīngdǎxìsuàn.

This family lives frugally and is always careful with money.