A Ringing Question

Folks, I have another question for you.  As I've never gotten married before, I'm not completely sure what the answer is here :)

Do I wear my engagement ring during the ceremony?

I've seen photos of brides who did, but more photos of brides who didn't. 

I've done a little research (*cough*HERMIONE*cough*) and I know that back-in-the-day, there was no distinction between engagement rings and wedding bands- the bride only wore one ring, which she sometimes received at the engagement.  Or, if there was a separate wedding band, she stopped wearing the engagement ring altogether after The Big Day.

I do know women who no longer wear their engagement rings, but keep them stashed away in a jewelry box to pass on to their daughters one day.

Not me, buddy- I love this rock and I'll wear it until my fingers fall off!

Some women wear the engagement ring on their right hand for The Big Day and then leave it that way afterwards- like my friend, BM MrsB. 

That's not going to work for me, either.  I wear my college class ring on my right hand every day, and I plan to wear it on The Big Day, too.  I'm sure some people will find that tacky or otherwise be personally offended in my choice of jewelry, but here's the thing- to me, that ring represents a lifetime of incredibly hard work, not just the 4 1/2 years I spent in beautiful Blacksburg.  That ring represents all the best parts of me- and as I'm bringing myself to my groom on our wedding day, I think it's fitting to wear that ring.

So, the diamond isn't going on my right hand.

What I'm wondering is- is it such a big deal if I wear it during the ceremony?  If anything, it'll remind Mr. Potion which hand to put the wedding band on :)  (He was holding my right hand during the proposal and I had to switch hands for him when he pulled out the ring!)  Besides, if I don't wear it, where will I put it?  I can only imagine that in all the chaos going on that day, if that ring isn't on my finger, it'll probably get lost in the piles and piles of wedding crap we'll be schlepping around.

So what do y'all think?  Should I:

-Just wear it- there's no rule that says you can't!
-Make my mom hang on to it because clearly she won't have enough to do that day