Paris is one of the most beautiful and most expensive cities in Europe. But this is not at all a reason to refuse a trip, you just need to spend money wisely, and then it will not be very destructive for your wallet.
The first tip is to rent an apartment in the center! Even if it will cost more than in the suburbs or on the outskirts, you will save money on travel, and most importantly - a huge amount of time and effort. After all, the Parisian metro is one of the most confusing and incomprehensible in the world. To get to the nearest suburb and back will cost about 7-8 euros per person. And the northern parts of the city are also unsafe.
Apartments or rooms with the owner will in most cases cost less than hotels, in addition, there is a kitchen and you can cook something.
Transport within the city is also quite expensive, as in all of Europe. One trip, which can be used for 1 hour on all types of public transport within Paris, costs 1.8 euros. Therefore, it is better to roughly calculate in advance how much you will travel and what type of ticket will be more profitable for you to buy. The center of Paris itself is small and you will probably be walking most of the time.
When buying plane tickets, look at which airport it arrives at. From Orly and Charles de Gaulle airports, you can get to the metro by regular city bus. From Beauvais airport, where low-cost airlines fly, it is much more expensive to get there - 17 euros one way. So the savings on the air ticket can be reduced to nothing. Also pay attention to the time of arrival and departure of planes, whether buses run at this time. Taxis are very expensive, and spending the night at the airport is a dubious pleasure.
Restaurants in Paris are quite expensive. But you can find a set menu with several dishes for 12-17 euros. A glass of the simplest wine costs from 5 euros, onion soup - from 6 to 10 euros, coffee - from 2 euros. But almost everywhere they bring a bottle of water for free. There are a large number of bakeries where you can eat a delicious croissant. In the warm season, it is customary to eat outside: in parks, in squares. I all drink wine, eat baguettes and salads from supermarkets. With a generally high price level, wine, fine locally produced cheese and baguettes are much cheaper than in Russia. Water can be safely drunk from the tap or from city fountains, it is of very high quality.
If the budget is limited, it is not at all necessary to buy tickets to theaters and concerts - a lot of interesting things can be found just walking around the city. In the squares in the evenings they dance hip-hop and other dances, roller skaters perform, paint pictures on the asphalt. And just watching the inhabitants of a big city is a pleasure.