How do you handle the "feast or famine" cycle as a freelancer?

[Btaliat]

And when there are famine, what only left for the freelancers is just to make sure that they make their marketing strategies active. They can as well make sure that they work in such a way that they keep their old clients active. They can be getting back to them and make sure that they lose contact with them. All these will save the freelancers during the feast of famine. What's your take about this?