OK, so here's a tip -- you are learning from me because I learned the hard way. Recall when I mentioned that I'd been paging through records for St Marguerite de Blairfindie? Well, there's an easier -- and still free way.
LDS over at www.familysearch.org (my favorite free genealogy site by far) has the old-school indices for those records here and here.
There is still some paging through that needs to be done, but you can jump to the year or year ranges you are looking for and there are roughly alphabetized entries for the records, directing you back to the main volumes.
As an added bonus, these indices (at least so far to me) have been WAAAAAAY more legible than the originals!!