Also fingerprint readers and indoor rock climbing don't go well together. At a job I had I needed to have my fingerprint reprogrammed every week or so because enough had rubbed off during climbing that it was not similar enough.
I have palmar hyperhidrosis as well. What helps is either clinical strength antiperspirant (something like DriClor) or iontophoresis.
DriClor seems to have no effect on me at all. Regular anti-perspirant works better for me.