Christine, I have bumps every week---and I take pictures that are relevant to every day, but some weeks I take two or three on one day that are good for the whole week; everyday things that aren't necessarily "events." I use those to fill in the empty days---I'm not admitting to anyone what days I missed!

And what Carol said is my vision, that I have a visual journal of each day for a year. That's what matters; my daughter playing with my son on Monday is just as important and poignant to me if I use it for my Tuesday picture. Who would ever know? Sometimes I don't even remember which pictures are "filler" when I do the pages, three days after I take the pictures!
Everyone should be encouraged to continue interpreting the project whatever way it works for them. I think we'll all be so thrilled and excited when our books/pages/albums are done, it won't matter if we "followed the rules!"
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Sarah
Equipment: Canon T2i (550D) with 18-55mm f/3.5-5.6, 55-250mm f/4-5.6, 50mm f/1.8, and 400mm f/5.6L lenses
Software: Windows 7, PSE 6.0 (Editor and Organizer), and PSCS 4