Yay! I am excited for you. Being outdoors is therapy for most ills.

You could employ your dog to dig some more garden beds in the lawn, he he...

I think the fish fertiliser is a great idea, and it won't smell so much if it's buried under plants, but then who knows who'd dig them up. Planting a banana skin and some egg shells under your tomatoes however, is a super idea and one your dear wife may agree with. Tell her I sympathise - men do come up with some crazy ideas.