I have a question about the digital camera memory chip?

Ok, I think I know tha answer to this question but I juz wana make sure. If my memory chip from my camera is full and I was to go to Walgreens for instance....print out all tha pics and then get em' transfered to a cd I no longer need tha pics on my memory chip do I? I can juz erase em' and reuse my chip....rite???