When was the last time you sat down at your table/crafting space, all of you full of inspiration and a desire to create, you took your polymer clay package, in my case it's Fimo, you touched it and it is as hard as a stone, phew, how annoying and frustrating it is to start softening it now using all kinds of methods you know, that take so long, and by the time you are done softening, you no longer want to create, phew!