I feel like a simple barter might be appropriate in this case. IT services for brownies. Or something like that. You still get the satisfaction of helping a neighbor and they get the satisfaction of paying you something, anything, for your time and knowledge.
Business shark me should have ride her fear and give her paid advice for a new machine while giving her a free 'recycling' service on her current laptop.
Is this true? I'm familiar with an accounting concept called "goodwill", but as far as I ever learned "goodwill" is just the label given to prices that are higher than the fundamentals appear to justify. By that definition, in order for goodwill to exist, it must already have been monetized.
As long as it's something reasonable, let them know if/when you need a hand with that later on, then they can expect a call in return. :)
If you turn it down, it causes an internal conflict.
Both sides got their needs met. Everything else is extra. People aren't learning how to be grateful for themselves and their own vulnerability. I'm not going to take away that learning opportunity, especially by accepting things from them I don't want or need.