As a college student and my husband is working at Walmart we often are living pay check to pay check. Which is stressful on our marraige. But we still find a chance to date each other. We often don't leave our home when we go on our dates. At times we will make dinner together or pick up something cheap for dinner. Then watch a movie either on our netflicks or renting from redbox. We have found out that having date night each week at least will help strengthen our marriage and it never has to be a big thing. Sure sometimes when we have the money we can go out instead of being home. But we often find the time. When our daughter is born in May we will be having date nights at home more often so we don't have to pay for a sitter. But we already have plans for the times we want to go out. Since we often go see our parents one of them would be willing to watch for an hour while we go out to eat for a little while. We will find a way.
It doesn't have to be a huge date and spend lots of money. It just needs to be a time to spend with each other and strengthen your marriage.