質問: how do you say this in japanese? do you want a bag? no need. (casual speech) how do you say this in japanese? do you want a bag? no need. (casual speech)
回答: @davidkila is this the conversation at a supermarket? then, 「袋は、いりますか?」 「いいえ、いりません。」 袋=ふくろ=fu-ku-ro