Float your boat
Live near a pond or lake? Rent or borrow a canoe or paddle boat for an hour or two of leisurely cruising or a little fun and exercise.

Take up the tango
Many local park districts offer a variety of introductory or short-term dance classes that you can take together—and practice at home.

Browse a bookstore
Enjoy skimming through a few books or magazines in their café while splitting a cappuccino and cookie. As a bonus, see if you can find one that features live entertainment, like a singer or interesting speaker. If you find a book you like, you can save money by checking it out at your local library to finish later. 

Catch a matinee
Admission is less and you can catch up on that film that your friends are all raving about. Get on your local theater’s email list, and you might just end up with a free pass for your birthday or anniversary.

Make a lunch date
Lunch menus can be much cheaper than dinner, it’s easier to find someone to watch the baby for an hour or two, and you won’t be tempted to splurge on alcohol. If the weather's nice, pack a picnic and enjoy some fresh air together.

Run errands together
This may not sound too exciting at first, but you probably have a long to-do list anyway, so why not? Save time, save gas and enjoy each other’s company.