re: How to keep the marriage fresh

I'll be serious for once. Do things for her like the dishes, laundry, clean the house. Surprise her with flowers and small gifts. Walk up behind her and kiss the back of her neck and remind her that you adore her.
Remind her that those little brats arent going to be little forever. Plan time away without the kids. Even if it's a night or two and while there, make wild, passionate love. Go out to dinner and leave the cell phones, social media and all that crap in the car or at home.