Re: Dandelions.
My whole lawn is in rubble sacks at the moment so dandelions are not a problem.
In my last garden I always left a strip of un-mown grass at the back for all the beasties so the dandelions and daisies made it look nice. I have often mown around a clump of them too.
I have just transplanted a rather large clump of Primroses from under the fence to the flower bed. They seem to be doing well so far.