I don't really like most candy, so I don't ever really get into the bags of Halloween treats! I usually give away "fun-sized" chocolate candies, (M&Ms, Kit Kats, Reeses, Twix, etc.) We usually give two candies to each trick-or-treater. I think that's plenty, because most kids I know end up receiving more candy than they can eat! ;)
We do get a lot of trick-or-treaters! In fact, last year there was an additional school bus full of kids brought into our neighborhood by a church that is out of the area. It's fun though! DH usually stays home to give out candy, while I take my "little sister" trick-or-treating. This year I am taking her for a little while and then she will continue trick or treating with friends. I have a 5 month old son and I don't know if I am going to take him to a few houses just for fun, or if I will leave him home with DH. It will probably depend on the weather.
I don't think I'm dressing up this year. If I do, I will probably just wear my little vampire costume from last year. DH says he is going to dress up to give out the candy, though. And my son has two costumes! A dragon outfit for daycare tomorrow, and a pumpkin outfit for Halloween day/night. :)