Interesting thread and certainly relevant to me.
I think "
plan out your projects well" is probably the best suggestion and one I should take more notice of but..... gah! I am a bit messy and erratic - I like to think it is artistic.

Hah!
I find that switching to a different part of the project keeps me going.
> Take bits of the script and experiment with the voice-over or sound effects.
> Create (totally wild and) extraneous props that might or might not get used.
> Play with the character styles - ie. make the hair blue or the skin green
> Speculate on different endings
I am not tied to a production time so most of my strategies involve 'loosening up' my fixed views. Playing about. I feel I 'should' have brown hair but... says who. Basically if it becomes too much like
work it looses the creativity/spontaneity. There has to be a sense of fun.
cross-fertilisation
Yes. Whether part of the same project or another project.
A 'block' has defined boundaries. How to get (think) outside of the box? I find the more project-relevance I demand of my 'alternative' thinking the less room I have to move. The more stuck I stay. A wild

breakaway [using a saved copy

]
I remember reading somewhere about Goofy's feet being put on backwards as part of his goofy walk.
radical