Use the relaxed schedule of summertime to catch up on reading a spiritually edifying book such as those from the RFPA. Or do some personal Bible study of a text that interests you; don't be afraid of getting out a few commentaries, there are free ones online at Biblegateway. Or find an interresting biblical topic and study up on that. Or get a commentary on one of the three forms of unity. Remember, God doesn't take a vacation from you.