A commitment to being healthy and happy could be a good idea. The information from the Blue Zones could provide lots of useful ideas.
A commitment to love could also be a good idea. Love 2.0 book has scientific research in this field.
On a simpler note, you could commit to a long walk in nature with your wife every month or every fortnight. Find a nice trail and keep returning there for a nice slow walk. You could use this time to unwind or to calmly discuss what you could do about things.
Oh well… I’m totally ok on being downvoted on accounts of low quality of my comments however, I wasn’t really expecting people here to downvote comments just because they don’t agree with them. I have adjusted that belief now and will act with a little bit more caution.
I guess I did that :) but it was a good lesson. It pointed to the fact that I should refrain from speaking without having at least a reasonable model about what I am speaking about. :)