I did something similar last month, and while I'm not yet sure whether this will be something I continue in May (and June and July and...), I have enjoyed working with a hodgepodge of photos that collectively represent what has been happening over a brief period of time. I don't have the energy or organizational skills needed to be a week-by-week Project Lifer, but a month-by-month approach is manageable. It focuses on highlights but also allows room to include details.
The approach is actually ideal for bringing together assorted photos that may not otherwise show up on layouts devoted specifically to them as individual subjects. For instance, I'm not likely to make a layout about the stacks of laundry in my house, or about a book I've been reading, but those aspects of my life belong on this page, because they help to document the day-to-day life that I live.
We'll see what happens in May. :)