I'm very sorry about your mother. I lost mine 5 years ago September. I didn't feel like doing anything either. My husband was beside himself. He didn't know what to do. He ended up buying me a Dept 56 halloween village.
I put out some inflatables(I know, that's how bad it was

).
Anyway, I know how you are feeling. I miss my mother and that will never go away, but I remember her fondly this time of year because she is the reason halloween is my favorite holiday.
The witch from Canada had excellent ideas!
Is there a school bus stop in your neighborhood? Maybe you could hand out flyers as the kids get off the bus?