Greek students often ask what they can do over the summer to maintain the Greek they have learned and to really begin to use it. Pastors who have been out of school for a while often ask about tools to help revive their Greek skills. For both groups, and anyone interested in reading the Greek New Testament, I heartily recommend The UBS Greek New Testament: A Reader's Edition.
This edition makes reading the Greek New Testament very accessible. I heartily commend it. It is a good way to make Greek a part of your summer reading.