Contact Cleaner vs Brake Cleaner

Brake cleaner has become my go-to for lots of different situations: from cleaning contacts, brakes, carburetors, alternators, as a starting fluid, even works on laundry (non-clorinated ONLY). I've even used it in a pinch as an EXTREME CASE ONLY hand cleaner before getting ready for a wedding! (VERY seldomly, as it can't be very good on your skin or for your metabolism in the long term). Sure cleans 'em up good, tho!