Put A Stake In It
There's a difference between the thousand little ideas that pop up and cry for attention for a few minutes/hours and the ideas that drain your soul for months until you realize they aren't doing you any good.
The first type are like fairies. Mostly harmless, even if they are known to have sharp teeth.
The second are vampires.
Today I put a stake in a vampire, and I'm ready to go catch some fairies.
If I'm lucky, I might just catch a full-on Tuatha Dé Danann.