tool for tracking of exposed cards?

[dr_mabuse]

hi folks,

i am interested in broadening my poker skills and include some stud+ stud/8. my main problem is that i find it very hard to multitable it, because i have to remember cards for several tables seperatly.
therefore my question:
is there a tool which tracks the exposed cards for stud for several tables?

thanks and bye
dr_mabuse