Your time out can be an opportunity to make life interesting and fun for your kids.
For example, occasionally, let them stay over with Grandma and Grandpa when you have a date. Your kids most likely enjoy spending time with their grandparents. As well, let them sleepover at a friend's house.
Or find a teenager close by that you know and trust. Usually, kids love to have teenagers for babysitters.
As long as you know the kids will be well cared for and safe, make the time they spend without you fun.