I find Project Life quite a fun way to document our daily/weekly activities.... it's 'easier' than the conventional scrapbooking cos it doesn't require as much embellishments. So far, I am able to keep up with it but I will always do it 'one week late' cos I print out my photos at the end of the week. I also don't put too much pressure on how many pages each week takes. If more things happen that week, it may take up more pages and if not, less. I find that less stressful than trying to make everything 'perfect'.
Of course I will continue to scrapbook... but definitely less :P Perhaps for the bigger or more memorable events... but PL definitely makes it much easier to preserve daily memories :) PL and the iPhone.. haha.... taking pictures has never been easier :)