Alone time with DH!!
Well, when my DD was about that age (and DS older), we started "Friday night date night." By 6:30, the kids are fed and in PJs and have to stay in their rooms. They can watch movies on their ipod, play the DS, listen to stories or whatever. And normally I DO limit screen time, but we can't afford a sitter every week, and for my family, DH and I finally decided that our marriage's health could come first one night a week. I love it and really look forward to it.
Hope you can find something that works for you guys.