I mean if the coffee's going cold fast it might not even be the mug, a cold room or a mug you didn't preheat will wreck it no matter what you buy. Try pouring hot water in and letting it sit a minute before your coffee goes in. Cheap trick but it made more of a difference for me than the mug itself did.

The thing about the flour jar is it's already a story, that's the problem. A buddy of mine kept a list like yours and sat on one for two years, some line his grandma said about the neighbors' dog knowing when someone was going to die. Every time he tried to write it, it came out flat. Then he stopped trying to build a plot around it and just wrote the scene of her saying it at the kitchen table, and that was the whole thing, like 400 words. So the keeper isn't the idea, it's whether you can see one clear moment in it. Flip through and ask which ones you can still picture a person doing something. The ones you can't picture, toss them, they were never really prompts, just lines you liked. Twelve good ones out of 100 is a solid haul, that's not a problem.