Cheap photo printing - online or instore

hi guys,

I graduated the other day.

The photos taken by the professionals are just to expensive and I can't justify spending that much.

I've got some nice photos taken by my friend using my dslr so I'm going to print some of those.

I already took advantage of the free prints and the photoblock on snapfish for these pics.

Just wondering if you know of any other good deals/promotions.

thanks