This is how you know your doing Arduino correctly! ;)
You could delete all the Serial.print lines and disable Serial.begin(9600);
This should save a bunch of memory and make for a better tomorrow... but "Global variables use 1,558 bytes (76%) of dynamic memory, leaving 490 bytes for local variables. Maximum is 2,048 bytes." seem fine to me as this is all this poor UNO will ever be asked to do.

- Kris