The Indecision Gremlin
And a right pain this one is too. You have two good story ideas to work on. Which to pursue first? I look at deadlines here and prioritise the one with the closest deadline. If it's a choice between a short piece and the novel, I plan out my writing time so I carve out slots specifically for the novel and other time periods I use for shorter pieces. Over the course of a week, I've got done (most of the time) most of the work I've wanted to do . It means I know what I'm doing with each day's writing session and it kicks the indecision gremlin where it hurts as I don't give it house room!
The Social Media Gremlin
How much time is the right time to spend on social media? There's no definitive answer to that one but I've found it has paid me to allow so long on it before I switch it off to write.
The Editing Gremlin
Otherwise known as the "I'll just edit this one more time" gremlin. Is a very close relative of the indecision gremlin and can be just as much of a pain. There is no hard and fast rule here but if you find you are just tinkering with a story, stop! Send it out to the relevant market/competition and see you how do with it. Remember this gremlin has the power to stop you moving on with new work if you let it.