I make my own. I really hate the layouts on every character sheet ive ever seen, so I write out my own with all the essentials on a single front page, and it works out perfectly. it looks something like....
str----#--+/-#---------name-------------------------fort save
int----#---------------level / class------------------ref save
wis----#--------------exp---------------------------will save
con----#--------------gold
dex----#--------------ac-----------------B.A.B.
cha----#--------------hp----#/# ----------Initiative +
skills$---------------------------------------------feats / abilities@
$--------------------------------------------------@
$ --------------------------------------------------@
$ --------------------------------------------------@
equipment (wearing)!----------------------------misc equipment %
!----------------------------------------------- %-----------%
!----------------------------------------------- %-----------%
It's a pretty basic design, and it works flawlessly. If im a caster, spells per day on the front side, spell list on the back. Sorry if I answered the question a little too indepth.