Here are just two of my questions.
1. Ought you sanitize paper money notes with isopropyl alcohol?
Firstly, I don't know if Canadian and British bank notes are paper or plastic.
Secondly, nobody here recommended soaking bank notes in propan-2-ol. Did they just overlook it? Or can propan-2-ol ruin bank notes?
2. Ought you sanitize credit cards with isopropyl alcohol?
Assume that I "avoid vigorously scrubbing the embedded chip or the magnetic strip". Can propan-2-ol still damage my credit card? And I want to double check this quotation with you chemists.
To safely clean your credit cards, regardless of material, you'll want to use a clean, soft cloth (like microfiber) and isopropyl alcohol. Perform an initial wipe-down with a damp cloth -- this will get rid of any surface debris -- then go back over it with the alcohol. You can also use a cotton swab dipped in alcohol to get into the nooks and crannies around raised letters or logos.
Although you'll want to use a little pressure while cleaning, avoid vigorously scrubbing the embedded chip or the magnetic strip, as this could potentially damage the usability of your card. [emphasis mine] Let your credit cards dry completely before placing them back in your wallet.