I big-puffy-heart little boys. Probably a bias, since I have one myself, but little boys with big eyes and to-die-for lashes, full of energy and so inquisitive...forget about it!
Then there are those moments that they are just so sweet - the ones that totally make you forget that you haven't had a chance to sit down in four days, at least during his waking hours. My 20-month-old hasn't just fallen asleep (run out of batteries?) in ages. These melted my heart.
Here's to little boys, toddler fun, and finding the "off" switch. :)