My wife played the wizard in the Savage Worlds party. In order to help her track her "power" or "mana" points, I made a little bead tracker using a pipe cleaner and some pony beads.
I color coded them so she'd know when she was running out and also to prevent the accidental "flipping around" of the tracker to "refresh" the power points. :)
Also, at the Dollar Store I found these little "spell books" from a CCG called Zatch Bell (?). They work out REALLY well for a game like SW. You can print shorthand versions of each spell the caster knows (and they typically don't know that many" and put them in the book.
You can also store magic item cards/scrolls/etc in the book if you'd like. You can see a Paizo item card peeking out from behind her spells...