Can I attach a note to an email?

[OutlookCurious]

I see several posts where people are asking for the same function I am
looking for. I would like a way to attach a note to an email so I can
quickly reference where I am on the email or make a note to myself about what
needs to be done on the email when I go back to it. I do not want to edit
the message itself. I will still need to reply back to the original sender
once I am done so I want the message itself to remain the same.

 

[KePaHa]

I have seen people use the right-click, FollowUp, Add Reminder and type in
the FlagTo field. Then, on opening the message, that text appears across the
top.

 

[OutlookCurious]

I can probably work with that, however, there is a character limitation. Are
there any other options?