I notice that the French Horns need some tweaking at measures 32 - 36. I want to remember to come back to it later without interrupting what I'm working on now. 
 
In that particular scenario I would "save as" the following ....<name of piece> FH @ mm 32-36

I use OneNote on a laptop next to my DAW or a notebook to transfer into OneNote later.

I too recommend using Markers at selected times and it helps a lot....
If they are too long, you can pull up the marker list and look at the time the marker is and what it says....
This has helped me a lot when I don't want to interrupt my workflow:)
 

dwardzala
I use OneNote on a laptop next to my DAW or a notebook to transfer into OneNote later.

I do this too. OneNote is my DAW bible. I have sonar tips from these forums, my own learnings which i tend to have to reinvent otherwise (how to wire up my vocoder), chords and lyrics, song ideas, chord progressions,  set lists, etc, as well as project track notes, to do's etc. Syncs with my tablet and phone. Awesome tool. One thing i would love to see is a window in sonar so a user could use the windows app of their choice (One Note, Excel, Word, whatever) inside Sonar (dock in the multidock, for example).

I usually just use the combo of notes and a text file.  I just write down the measures in the text doc that need tweaking, along with whatever their tweaks are.
 
I keep it all in order by measure, generally, but in any case, I write down however much info is needed to identify both the location and the particular things needing to be done there.
 
Bob Bone
 

Great ideas here, thanks.    I used to use something like the sticky-notes vst plugin, (called "DXPad, I think) but that got irritating since the notes were usually in the way when they weren't being used for a reminder.   I have been using text files and scraps of paper, preserving markers for Rehearsal Numbers, but I like the marker as a reminder too ...

Combination of markers and external notes in notepad/wordpad, whatever.
 
I like the external notes because I can easily print or pop open Wordpad without starting up DAW software.
 
I don't use clip names because clip operations can destroy the info, eg.  bounce to clip
 
 

Fur shur markers, cloning/naming tracks, adding project info,...
 
Reasons I use Excel as well:
each sheet is essentially unlimited in size
   I have one page that has each project alphabetically listed
     with dates of editing and what I have done and to do
 
Each tab can be named: project title, activity, song,...
   some projects need more space for random thoughts /lyrics / info
 
The whole spreadsheet is searchable: quickly find all the notes about horns, bass settings,...
 
Do not have to have sonar open with a specific project to add notes, review, plan.
 
Second major tool is notepad.  I have 5 notepad files that auto-open when the computer is started. Each for quick notes per topic: today, story ideas, projects, lyrics, and misc.
Easy to quickly display to add to, refer to, and copy from these files to any other program. 
 
 

If you use note pad (and have a recent version of MS Office) you really should check out OneNote.  It is basically notepad with a lot of the functionality you find in excel (tabs, searchability, etc.)

I have OneNote ... cool tool, but it's heavyweight (IMO) and not terribly portable. 
 
I even use vim quite bit