Quote by spicylove
I would like tips on co-writing stories.
Golden tip for me: leave your ego at the door and insist that your co-writer does the same. That ensures you don't get into situations like Just_A_Guy_You_Know mentions of not being a good fit.
If either party is too precious about a particular line, word, sentence, concept or whatever, and is not willing to have their words altered or concepts challenged for the good of the story and characters, then it won't work. By all means stand your ground, but be prepared to listen and accede if the character or storytelling arcs would benefit from not being as you wrote them.
Second tip: if you're using an online collaboration tool like Google Docs and don't feel strongly about an edit you think would work better, highlight it and use the comment feature. Have a powow with the other author in the comments, bounce ideas around and come to a consensus. Then one of you make the change and resolve the comment. It works superbly well.
Tip three: when making edits in online collaboration tools, each author writes in different colour text so it's easy to spot who added/edited what as you scan through the doc. It's not always easy to see who made a change when you're both working at different times. Then, just before you copy n paste into Lush, Select All and choose the automatic font colour to clear the colours.
Tip four: take regular backups. Download a copy every day at least after someone has worked on it. Sometimes you want to go back to a previous edit you axed and the Edit History isn't so easy to navigate.
Tip five: take your time. Refine until the story rocks, then publish it here.