I've looked around for this, and haven't been able to find a satisfactory answer; How would one go about producing (automatically) a table of equations, just a numbered list of used equations, possibly linked to their position in the document, as say an appendix?
thmtools package defines
\listoftheorems which does pretty much what you want. See page 7 of the manual.
(Disclaimer: I've not actually used it, but I've seen it recommended on here before.)