One of the biggest problems in mixing I have right now is the fact that after especially longer mixing days I'm having trouble to keep my ears "fresh" and that leads more or less to bad decisions. Even comparing them to other mixes won't help because at the time they start to sound weird. For example when I start to A/B Andy's work to my mix and his stuff sounds like tiny and muddy I'm thinking maybe there's a chance that I actually didn't do a better mix than him
This is easier to avoid when there is time for breaks but on a tight schedule I seem to be really in need of an "aural compass" so to speak.
Does this happen to others and what's your way to deal with it?

Does this happen to others and what's your way to deal with it?