How can I change Visual Studio's (2010 or 2012) cursor/caret size?
Something like this:
I'm not looking for the Insert Key!
You can change the width of the cursor (caret) although it is a system global setting, not specific to Visual Studio.
Control Panel -> Ease of Access Center -> Make the computer easier to see -> Set thickness of the blinking cursor
(This is in Windows 7 - in other versions of Windows you may have to go hunting given how Microsoft like to change things. Alternatively, edit the registry setting HKEY_CURRENT_USER\Control Panel\Desktop\CaretWidth).
Edit: In Windows 11, it's in Settings -> Accessibility -> Text cursor.