How do you say

I have just bought a new piece of clothing which I am going to wear for a week.

..in Chinese?

我刚买了一件新衣服,准备穿一个星期。

wǒ gāng mǎi le yī jiàn xīn yī fú , zhǔn bèi chuān yí gè xīng qī 。

How do you say "My whole family is planning to take a vacation by the sea next month." in Chinese?