Traveling can be expensive, especially in big cities, but I do have some advice on how you can save money and do it on the cheap.
GO WHEN THE WEATHER IS NICE, BUT NOT DURING PEAK SEASON
If the weather is nice, you can spend most of your visit outdoors (at the beach, in a park or gardens, along the river, etc.) which will save you lots of money, so try to plan your trip for a season with decent weather. However, make sure it’s not peak season as that’s when all the prices are jacked up.
AVOID RESTAURANTS
Eat street food. Utilize local supermarkets. Cook. If the weather is nice, picnic in a park. The gardens at the Eiffel Tower is a popular destination for picnicking and drinking wine or beer while enjoying the power and mystique of the tower. If you really want the restaurant experience, go at lunch time during the work week when there are deals.