Shopping expedition

There’s nothing in the cupboard, all is gone,
So to the store my wife and I must go.
It’s not exactly my idea of fun,
Or jollity, or pleasure you should know.
Still it’s essential to acquire such things
As margarine and butter, coffee, tea,
And eggs and sugar, and she homewards brings
A bottle or two of wine – but not for me.
We each have our idea of what’s essential,
The things we need to make life jog along.
Some of her needs I find inconsequential,
But I suspect she thinks I’ve got it wrong!
My name’s Jack Sprat you see, and as Jack’s wife,
She much prefers the fattening things in life