I'm not sure if what I'm asking for qualifies as a full-fledged add-in, but here goes...
I'd like to put an option in one of the menus (Edit, perhaps) that gives me the opportunity to clean my text-- namely, sometimes in the course of business my quotation marks around strings wind up "slanted" instead of straight up and down, a consequence of cutting and pasting from outside sources.
It would be great to have a "clean quotes" option in VS that does a search and replace in the current document and puts in the correct quotes. How might I go about doing this, and thanks for the advice.