while i'm waiting,

I'm considering opening a Tumblr for ease of writing/styling. I love my Blogger and want to keep it and everything on it forever, but I just can't resist the endless, simple Tumblr themes that my current "carrier" lacks. Ah. Perhaps there's a way I can split up and redirect my blogs depending on what I'm using them for and when I'm using them? Like a seasonal thing, or annual thing, or stage-of-life (i.e. grade school, college, whatever comes after that) type of organization system? I'll have to look more into it, but as of now I am more than tempted.