Housing is definitely a big thing, but also everyday items can be expensive and it gets frustrating.
When we were living in Italy, we lived 30 km from Milan, so it was VERY close. However, it was almost an event to go there because every item added up.
The highway is about 15 USD both ways, free parking can be hard to find, paid parking on the street is about 2 USD per hour if not more, a garage is at least twice as much.
An aperitivo is about 10 USD, dinner is 30-40 USD per person, a night cap is another 10 USD. Add gasoline and it was easy 100 USD for a night out. With that money, I paid the electricity bill for two months.
Every time we were invited out to celebrate somebody's birthday it was not a pleasant news because it would set us back of at least 60 USD.
When you make €1000 per month, it quickly adds up.