Developers

I have searched the documentation and the questions here, but I have not found an answer to the question. If I have a post, and I want to display an excerpt (teaser) for it on the list of posts (using the Diary template), how do I accomplish this without having to duplicate post content in the metadata section? I have tried a variety of combinations of the {{{teaser}}} and {{more}} special tags in my post content but nothing seems to work. I simply want to know how I can flag the first paragraph of the post as a teaser. Thanks for any help you can provide.

I would like to add a TOC (table of contents) to each post on my blog. What is the best way to accomplish this?

I'm using the Magazine template and would like to sort the tags in the sidebar alphabetically. Is that possible?

I'm using Commento, but the problem is that it is lacking visibility. How could I add a "Comments" link under the post date on the left, on each post, on the main page? Thanks.

The title says it all. I'm currently using Commento as an external service.

Would it be possible to show all entries excluding posts with a specific tag?

Is there a way to change or manipulate stylesheets for minor changes that can affect the entire site? For example, just want to change the behavior of hyperlinks without manually recreating the existing pages.

I would like an image used in my blog post to appear when I share the post on Twitter, or Facebook.