re: What amount do you save per month?

Keep checking account at around 3 months of expenses. When it builds past that it is either earmarked for quarterly tax payments or some other large payment (property insurance, property tax, etc).

Otherwise overages go to investments. I don't dollar cost average, usually just put in chunks.

Savings % is ok, not as high as many because we spend a lot, but the dollar amount saved is pretty substantial.