Every day we do the following at least twice:
Come, sit, shake, down, stay
Hidden 'named' treats to find ('squeaky pig' 'lamb' toys etc) and 'bring' and 'drop it'
Ball/rope toys thrown for retrieval and 'drop it'
Kongs and treat balls when we are out
25-30 min walk every evening.
He has 2 clam shells of water in different locations - and he loves these, but only seems to go in them when we are home.
The rock thing is only when we are home too - I think attention seeking?
He has decided one of his 'jobs' is to remove all dead palm fronds from the garden (when we are out) and we can live with this - he does not touch the green fronds.