I find when playing DnD4e it helps to write each of my abilities on a index card, as they are easy to sort and I can discard them when they're used.
The biggest issue with this method is quickly identifying which card is which, so I draw artwork on the back of each card to help clearly identify it.
Because initiative and turn order changes pretty much every turn, it's also easiest to track this with a deck of cards, so now I also have cards for each character to keep track of the turn order.
Nissa Power Cards
Shanairra Power Cards
Marta Power Cards
Sphinx Power Cards
Shava Power Cards
V4th Artefact Cards
Initiative Cards
Franchise Heroes Initiative Cards
Franchise Heroes Henchmen Character Cards
Back to V4th
Socks and Puppets