After the Save Rukia arc, Bleach has just been random fillers, thought these random fillers seem to be leading up to something.
Bleach 68 – 69
So starting with episode 64, they’ve introduced a new Ending Song: マイペース. You can download the TV edit mp3 here: SunSet Swish – My Pace [TV] or at the source I found (which is a bit slow). The mp3 was taken from 17173 BBS.
The tune’s rather catchy and the Ending is rather cute: