I don't even bother going that far. I just have a [words]receipts@[domain].com and use it for all of those e-receipts, accounts that make you sign up at checkout, known spam generators.
If I need to search for a receipt for any reason, I have it there. But none of it clogs up my real email
Public transport could do something for him if it was invested in more and we valued the community enough to provide better senior transport options.