Mail.app > Notes - Louis Gray

I'm not even going to lie: The sticky notes app on iGoogle is where I store blog post ideas (not sure if they're great, haha). - Eric Florenzano

Google Docs - Kevin Cearns

I build them up whilst listening to my iPod on the train to work in the morning. That's my most inspirational time, then I get into work, start kicking a football around the office and have a coffee and it's gone! - Joe Dawson

Wordpress draft posts - Mark Krynsky

Adobe Buzzword - Kevin Bondelli

Generally on my phone - either notes I've typed or dictation. I then type them up properly on the PC - Colin Walker

notepad++ - Morgan from twhirl

I really like google notebook for this sort of thing - particularly as part of my igoogle page. - Doug Brooks

Upper cortex, location 5 alpha bravo - TranceMist

Remember the Milk - Mack D. Male

OneNote or Flock's web clipboard - Tris Hussey

google docs and lately experimenting with evernote - Dobromir Hadzhiev

Remember the milk - Bwana

on my phone for spur of the moment ideas, googlenotebook for web clips - B.T.

I used to use tadalist.com, but I've recently switched to Evernote. - Evan Sims

OneNote - I have an entire section of things I want to write about. - Kathy Jacobs

I forget most of them. The rest are on post-its or envelopes on my desk or in blog drafts that I never finished. - Kevin Fox

I do the same as Mark -- and add details as they come to me - Shey

Google Notebook. Easy and convenient, especially with the FireFox extension. - Eddie Awad

Google Notebook - Bill Stevens

scribefire, livewriter, google notebook...via feedalizr - Ro (Lilyhill)

I've also just made a private room with myself as the only member for keeping small reminders. - Kevin Fox

text file on the desktop - Lucretia Pruitt

Great idea Kevin! - Shey

Shey, I actually just user twitter /ff for linkfarming or directly send url to via email to my pvt google groups. All my Blog's are configured to send out a copy of my postiny to this group too. So I have a redunant copy of my blog in forum form too. - Peter Dawson

I use Scrybe, and the Scrybe thoughtpad is pretty good for that. I don't really have to store my ideas as I typically want to make a great blog post before somebody else comes up with the same idea, and it's quite often that somebody does come up with the same idea, but at least people at not sick of the topic when a few bloggers have talked about it. - Rishabh Mishra (p248)

Blog titles plus a few notes are saved as drafts on my wordpress.com blog - Hutch Carpenter

either a new wordpress draft, but almost usually just jotting some notes down on the yellow legal pad that's always on my desk - Paul Stamatiou

In my head, which is why I'm only good for one a day (at best). I'm kidding. Microsoft OneNote is killer for saving these, although I'm using the new Evernote beta more and more. - Kevin C. Tofel

Things - Duncan Riley

I have no great blog post idea. - Erhan Erdogan

For awhile I did mail.app notes. Now I keep a Google Doc. - Steve Rubel

Txt document on my desktop. - Jim Kukral

I put my ideas to paper on Field Notes. - Jason Runyan

Yojimbo. Or by email to Backpack, if I'm mobile. - Eric Johnson

My ADHD doesn't seem to let me pick one place. 5 notebooks and 43 apps. - Alex C. Williams

I will let you know when I have some. :) - Michael Hocter

remember the milk , i have a folder for blog post ideas - Jonathan

Backpack. I love it. - hiroshimo

I'm another Google Docs user and all posts get put in an @Working folder - Wm Morris

If it's just a thought, Evernote. If it's a site, Diigo, tagged as "blog idea" - Bill Bittner

Honestly. Post-It notes. - AJ Kohn

Gmail. I email the post idea to myself and put a special (made up) word and keyword(s) in the subject line so I can search them all easily. If I edit them, I reply to myself so all versions are available. I could do all of this in Wordpress but Gmail is in front of me or in my pocket all day. - Luca Belletti

I use Windows Live Writer to manage unpublished posts with ideas and links - Miriam