Instead of necromancing an old thread, I'm starting one anew. Here's one of the two old ones if you want to check it out: (The other was remov
TL;DR I'd said:
According to Lockhart, there are three important elements needed for a good logline:
who the story is about (protagonist)
what he strives for (goal)
what stands in his way (antagonistic force).
Write a logline for your written story.
Write a logline for your future stories.
If you don't outline, just logline.
Here's an amazing article by Christopher Lockhart. I highly recommend printing the first 17 pages, stapling them, and putting them in whatever folder you have for info-y tidbits.
Remember, not to post your ideas here!
If you're interested in someone having a look - post that you are interested and see if you can get some swaps.
Now, get busy!