I like Notational Velocity. It's the most minimal interface I can find but the search is super powerful. Plus, you can store the notes as text files in your dropbox and get them everywhere! Not sure if it has word count but there are a few forks of it that probably do, such as nvAlt
I use Byword on iOS, but I prefer nvAlt on the OS X end of things for searching for and creating notes. They work pretty well together, as they both sync to Dropbox.
Second this. Notational Velocity(or its cousin, nvALT) synced with Simplenote is a winning combo. Not only does it make creating notes a simple matter of typing what you want to say, it makes searching for your notes just as easy. There's also need to save anything — what you type is what gets recorded.
I use it for practically everything these days — to do lists, class notes, random ideas i don't want to forget, code snippets, cheat sheets for shortcut keys and whatnot, you name it. Sometimes, I'll even write up some of my more lengthy comments in nvALT, to be posted to reddit later. It's has all of niceties of carrying around a physical notepad combined with the niceties that computers bring — something like this should have existed decades ago.
nvALT adds supports markdown(and some other things), so you can do simple formatting the same you would on reddit and elsewhere around the web and output the completed product to HTML or even PDF. It's 100% compatible with NV, so if you're already using NV, it'll pick up your notes from its database, or if you prefer to store your notes as plain text(like me), just point nvALT to your notes folder.
It's seriously one of the best apps I've ever stumbled across.
Edit: Thanks for the downvotes, guys. Real classy.
I recommend nvAlt over Notational Velocity. It's a fork with some nice extras, especially if you like to use markdown for your notes. Plus, the developer is pretty responsive to ideas.
You need NotationalVelocity, specifically the fork by Brett Terpstra called nvALT. It can sit in the menubar and have the window summoned by a system-wide hotkey. There's a drawer containing all of your notes, and activating the app and typing searches through notes and, if no note exist with the title you typed, pressing enter creates a new note with that title. It can sync to SimpleNote or Dropbox, as well. It also supports markdown and holding ctrl displays a markdown preview. I love this app SOOO much. Syncing it to Dropbox and Elements on iOS gives me access to all of my writing, automatically synced everywhere I go.
I've been keeping notes for about 2 years now. I'm always really paranoid about taking on new apps for note taking in case they stop working after some time, so I usually stick with plain text notes.
I like NVAlt on my mac - http://brettterpstra.com/project/nvalt/ which lets me sync to dropbox. On iOS, I use PlainText to edit those notes whenever I need something.
I'll play with it a bit though. I like the idea here of better video support. If it syncs and can be edited with other apps, I might be able to use it.
I'd use something universal like Simplenote to share texts and Dropbox for everything file based.
Personally I use nvALT (with Markdown) on my Mac and Nebulous Notes on my iOS devices to keep notes in sync.
nvAlt. Free.
There's also the Notes.app that's built into ^Mountain Lion, if you can bear the skeuomorphic legal pad design. It definitely seems to have been influenced by Notational Velocity, which nvAlt is forked from.
Edit: said Lion, meant Mountain Lion.
Scrivener's awesome, but it's also like a big fat Swiss Army knife.
Try out smaller tools with focus, too. Here are a few I use (escape pods from the Scrivener mothership).
nvALT. A compact editor with a unique blend of creating new documents and searching for existing ones that makes me feel close to my ideas.
Notesy app integrates well with nvALT.
Write or Die. Almost a gimmick, but it can really help if you like to write fast and make a game of things.
What this gentleman says: TexShop (Latex editor) for big projects, and LibreOffice/TextWrangler for the everyday stuff. Also: nvALT for simple note taking, but thats another topic.
Seems like the perfect place to apply either something like [PmWiki](www.pmwiki.org), Mediawiki or (for something more self-contained) nvAlt. In all of these, you can create links from one page to another and then have the linked page be a description, list, etc. nvAlt is particularly great for keeping track of stuff on your own machine, but I've also had great luck hosting project details on a (perhaps password-protected) mediawiki, so that my bosses have been able to view & edit things as we worked on them.
Good. Personally, I swear by nvALT. I seriously cannot recommend it highly enough. Virtually every task I take on for work, school or my personal life starts its life in nvALT. It's such a simple and obvious solution to taking notes that it's amazing that there hasn't really been anything like it until now. Some tips:
Sync your notes with SimpleNote. Support for this service is built into both Notational Velocity and nvALT, as well as many plain text editors for Android and iOS, so you can access your notes from anywhere.
I personally prefer nvALT over Notational Velocity because it has built in support for MultiMarkDown, which if you're not familiar is a very simple but powerful markup language(reddit uses a variation of this for its commenting system, so you might already have some familiarity with how it works). This gives you a straightforward path to taking plain text and translating it directly to HTML, PDF or some other rich text format.