Hi
A quick solution is to declare a public string variable "ToDo" in a
standard module and then put an assignment of the form ToDo = "do this"
wherever you want a ToDo reminder. Assumming that you have Option
Explicit turned on everwhere - simply commenting out the declaration
and compiling the project will cause the compiler to flag those
locations. The problem is that the VBA compiler doesn't give a list of
errors but just directs you to the first one. If you want to generate a
list then you would might need to get into scripting the VBE and
searching the code (presumably for comments of a certain form), which
is nontrivial. The Wrox book on Excel VBA by Green et al has a chapter
on that.

Hope this helps