You do things when the opportunities come along. I've had periods in my life when I've had a bundle of ideas come along and I've had long dry spells. If I get an idea next week I'll do something. If not I won't do a damn thing.
In the light of our culture these are not unreasonable questions and tactics but if once again we try to see the lens through which we look we can see that there is far too great an emphasis placed on the future.