To those who commented

I want to thank everyone for taking the time to respond to my question from yesterday. Your responses and suggestions were more helpful than any google search I could have done.

I got a card and wrote on it our condolensces, offered our help and signed it with our full names, address, phone numbers and email. Then I went over and knocked on the front door. I had already met our neighbour's daughter one time briefly as we said hello over our yard's fence from a distance in our first week here. She answered the door and I expressed my sadness and gave her the card. She said she didn't remember our names and I told her I wrote it in the card in case she needs any help. It seemed like she and a couple of family relatives were cleaning up the house and packing everything. I offered all the leftover boxes we gathered from our house moving. She was extremely grateful for all the boxes I gave her, because her mother had a huge collection of barbie dolls (400+) and other things that needed packing.

I then asked which charity we can donate to and she said The American Cancer Society. And that's what I did.

I know some of you will think I did a good deed, but I only feel like I silenced my conscience and guilt over not offering help sooner. I don't feel good at all. It's as if I did something now just for my own feel good and after it was too late and not really to help a neighbour whom I knew was dying.