Meaning of ‘Tidy up’ Phrasal Verb in English

I need to tidy up my wardrobe; it's a bit disorganized.

Before the guests arrive, let's tidy up the living room.

After the party, everyone helped to tidy up the kitchen.

The children were told to tidy up their toys before bedtime.

The janitor is responsible for tidying up the school classrooms.

She spent the morning tidying up her workspace for better productivity.