I'm not sure what is the official rule over crumbs or spills; I haven't seen a lot of worry over it, nor have I seen a big obvious spill. As a chalice bearer, I was told to soak up any drips with the purificator (fancy name for the fancy cloth napkin used to wipe the edge of the chalice after each person sips).
I don't mean to criticize anyone for feeling shocked, but we're discussing denominational differences here, so I'll explain my perspective, which aligns with that of at least some Episcopalians: Communion is a commemoration of a shared meal. We know from the Gospels that Jesus broke bread and shared it; we do not know whether he handed it directly to the disciples, placed it into their mouths, or let them pass it from one to the next. We know that he blessed a cup of wine, and they all drank from it; we do not know whether he held the cup for each of them, they held it for each other, or they passed it around and each held it for himself. Because of the spiritual importance of Communion, some solemnity and formality are required, but that doesn't mean there is only one right way to do it. Receiving in a way that is more similar to a meal shared among equals may be most spiritually fulfilling in some contexts; it is not taking it less seriously. (Jesus taught that religious leaders should be humble and not reserve special privileges for themselves.) The paten and chalice deserve special respect because of their role in our worship, but they are not objects too sacred to touch--Communion is about welcoming ALL of us to join with God. Not only do acolytes and chalice-bearers handle the paten and chalice, but in our typical service it is totally acceptable for any communicant to place her hand on the chalice to steady it, and then there are the services where we each serve the next person. The priest blesses a quantity of bread and wine she estimates to be just enough to serve the people present, but if she's overestimated, she and the chalice-bearers drink the extra wine. I think leftover bread sometimes gets saved for the next service, but I have seen my priest scatter it for birds while reciting the passage about how God cares even for the birds of the air.

Episcopal churches may use leavened bread, matzoh, or wafers specifically manufactured for Communion; it's the blessing that makes it the Body, so there is no "wrong" bread.
Meghan, from your posts overall I'm beginning to think that the Anglican Church in Canada is very different from the Episcopal Church in the USA. Springmama, you're in the USA, correct?