I've taken 'month' pictures of DS next to his teddy every month since he was born. I'd only planned on doing it for his first year, but now he's 13 months and I'm wondering if I should carry on doing it every month or if now that he's no longer growing like a weed (a cute, adorable weed I hasten to add 
!) I should leave it a little bit longer between photos?
Has anyone done this? Or, alternatively, not done it and regretted it?