Can you use 丰富 to describe a day? So, I'm trying to figure out how to use 丰富 most correctly. I know that youcan say 今天的晚餐很丰富。  But how else could it be used? Could I say “今天过得好丰富？“ in say a written diary? 

Thanks for the help guys!
丰富的一天 - an eventful day with plenty activities but you may not get anything positive out of them.

充实的一天 - perhaps not as many activities as in 丰富的一天 but you actually get something positive from part-taking in the day's activities.

It does sound a bit odd to say “今天过得好丰富？“. Perhaps "今天是丰富的一天" sounds better.