I'll te;l you my labour/bith tip.
Eat grapes.
Pounds and pounds of them.
It worked for ds3 and ds4....possibly even ds2 but my memory doesn't go back that far.
It also worked for my RL friend and a few MNers I mentioned it too.
It'll back you spend most of the labour on the loo but at least theres no mess to clear up then.
Try it.
It has to be LOADS though. I think I ate a whole 2-3lb bag!!