It might be a while since you two walked down the aisle. Long gone are the days of carefree dating. Hello, cohabitating! Yup, somewhere along the way it all changed. And with it came joint tax returns, the cat, dog, and kids. These days it can be hard to squeeze in a little lovin’. But before you throw in the towel, hear us out. Here are our top 10 tips on how to keep that spark – better yet – flame burning for an entire lifetime.