Oh dear that sounds just like dd2 (now 9). She's a total clutz- always banging into things, trips over her own feet, forever falling over (10 bumped head notes in her first half term at school!)
She's danced since three and I really think it has helped her clumsiness. I believe her to be ever so slightly dyspraxic (or perhaps she's just a clumsy oaf like me!) but she's really not bad at all now.
She's very bright BTW. Handwriting getting there nicely and doing very well at school.
Didn't learn to ride a bike till 8.