Free events? Movies/concerts in the park, museums, architecture walking tours, etc. can all be very inexpensive or free. Go to an event at a public library together. Go out of lunch instead of dinner. Do picnics from the grocery store instead of fancy dinners out--my husband and I loved doing that on our trips in Europe (buy crackers, cheese, fruit, etc. and bring a couple beers or a bottle of wine). Read a book out loud to each other. Read the same book and discuss. Play games (card games, board games, word games, guessing games, do a puzzle, etc.). There are many ways to spark romance without spending anything.