If you were considering volunteering or donating for the first time, here's what it's like:
Right now, the volunteer opportunities are mostly GOTV - Get Out The Vote - canvassing, phone banks, etc.
I participated in a phone bank. I was given four pages of registered voters in a swing state. I called them all on my cell. It took two hours. Most of the time I got voicemail. Sometimes I got an inactive number. Twice I got hang-ups, and twice I got strong supporters of Hillary Clinton who were glad to hear from me. And then I was done.
This isn't rocket science, and it isn't hard, but it is important.
So go for it.