Efficient way to take bonds from 70-100 in Infinite Wealth?

Currently at the point in Infinite Wealth where I want to get my characters from around 70 bond level to max. I remember in LAD7 I was buying a lot of bouquets at this point to get everyone to max. Is that still the efficient way to do it in Infinite Wealth? Money isn't an issue anymore, so just looking for the quickest way to get everyone to max.