My father was diagnosed with it about 5 years ago. He mostly has the tremor in his left hand but has started occasionally in his right. It's manageable for him right now I think but I guess it's not going to get any better unfortunately. He retired last year as an electrician after 45 years. He still works on stuff around the house but not as much as would like to be able to I'm sure.
I don't know much about it, but I thought one thing he does to help with it is donate blood regularly. Apparently giving blood can lower excess iron levels in the body which helps with the shaking or so he was told by his doctor.