Writing to EEPROM w/ Arduino

[electron_misfire]

Hi all,
I'm currently experimenting with arduino. My current project is a stopwatch that saves times to EEPROM. With all the examples I've looked at every time the arduino restarts the write address is the same. Wouldn't that overwrite the existing information? If so, how would I write the code so that I don't overwrite existing bytes.
Thank you.

[Psi]

Store the active eeprom address in eeprom itself.

Then you can keep track of it and write to the next available address.

You may also want to change the EESAVE fuse bit so that reprogramming the arduino doesnt clear the eeprom.