If you ever work with leather dyes, it would be great to remember BEFORE you start that you, too, are made of leather.
@jack_daniel boot/shoe polish makes an excellent fingertip polish if you happen to be out.nice leather moisturiser can also thoroughly disrupt your fingerprints for around an hour.
Mastod1 be nice. (sorry, closed for new registrations after a bunch of 'commercial/spamming' accounts jumped in - rule 3 on site)