In the Style of EcoDad...

Today work was a Quota of Quintessentiality.

Do you ever imagine the workings of something in your head, effectively put paper to pen (in this case, code to computer) and then find that either it wasn't possible or you just got it wrong?

That's the absolute opposite of what happened today on two separate occasions for me. I had an idea of how something might work based on more or less a whim and it ended up working.

Leaves a rather satisfactory feeling of achievement for the day.