I'm similar to OmmU.
I just had one book for lectures and tutes unless I needed another. For example, when I did accounting information for managers we had tutorial homework that got checked off, so I kept a separate book because it took up a lot of space each week.
And yes, sometimes tutorials may cover what will be happening in next weeks lecture, in others, you won't do any writing at all! In Management Dynamics we did presentations in each lecture so we rarely covered anything but these. Maybe only the first two or 3 weeks involved 'in-class work'
An alternative could be to just use loose leaf paper and sort it into folders when you get home