If you lost interest in the game, what did you do to develop interest in it again?

I've done a kind of generational thing with collections. Each generation keeps the generations before collections and adds a new collection, so by the time I reach my usual 10 generations they should have the same number of full collections. I then start the legacy again with the 10th heir and carry over the new collections. By the time I've done 27 generations or 2.7 legacies they should have the full lot.

Also all of my joint heirs have to be twin/triplet/quadruplet girls - I may or may not cheat this bit :) :D