Fun Fact Number 1 - You wanna know why Renji's always crouched down around Byakuya? It's because Renji's almost half a foot taller than Byakuya is. My theory: Byakuya MAKES him crouch down so that he doesn't feel short XD
Fun Fact Number 2 - Ichigo is almost a whole foot shorter than Renji. Which means he's also shorter than Byakuya as well as a lot of other shinigami. Why are the shinigami so tall? Who knows.
Fun Fact Number 3 - Ukitake Juushiiro is seen in his school days in both the manga and anime. However, in the anime he is shown with his long white hair tied back in a ponytail. However, in the manga, his hair is actually much shorter in his school days. Sorry Ukitake fangirls XD Ukitake wasn't supposed to always have pretty hair.
Fun Fact Number 4 - The scarf that Byakuya drapes over Renji at the end of their battle is worth enough to buy TEN MANSIONS in Soul Society. Holy shit SCORE!
Fun Fact Number 5 - At the beginning of each chapter in the Official Bleach Character Book there is a small verse or poem along with a picture. Each poem was written by Tite Kubo. This one is my favourite, the chapter picture is of Renji, with his shirt off *grin*.
"I stretch my hand out
Towards the moon again tonight
Even though I know
I can never reach it."
Simple and sweet ^.^
Fun Fact Number 6 - A lot of the t-shirts that Ichigo wears are designed by Tite Kubo, you can buy some of them at the Jump Shop
Fun Fact Number 7 - In the original oneshot manga that eventually became the precursor to Bleach, Rukia shrinks down to a few inches tall in order to conserve power. She's also not allowed back to Soul Society when they find out that she gave Ichigo her powers.
Fun Fact Number 8 - In the oneshot mentioned above, Orihime and Ichigo have crushes on one another, which is revealed when Orihime gets pushed down a set of stone steps and dies.
My fun facts were found in the Official Bleach Character Book, a.k.a. Souls. There's tons of other information if you wanna look it up, including the height and weight of all the characters.
(Yes I was bored, sue me.)