How funny the title of this thread is! When I first read it I thought someone was asking if there was a correlation between toilet paper and passing gas! I figured this is such a strange disease that affects everyone differently so anything is possible.
We always buy in bulk but we are a family of 5. The extra toilet paper rolls came in handy last year for Bratcat's Girl Scout gold award. She made (and got other troops to make) monthly crafts to put in the bags for a Meals of Wheels program in the area. In total they made close to 300 turkey napkin holders for Thanksgiving. And that was just one month's craft. I don't remember if each holder needed one or two empty rolls but at least we were able to contribute!
You could see if any groups (Girl Scouts, Cub Scouts, schools) need any empty rolls. I have seen people give them away on Craigslist and on Yahoo!Freecycle. Who knew there would be another upside to IBDs.