Summer vacation season is winding down and the back-to-school sales are ramping up. Several of our local stores provide handy lists of required supplies for students at the entrance of the store. When I perused the lists, I noticed some of the items are oldies-but-goodies that were also on my shopping list as a youngster: No. 2 lead pencils, erasers, lined paper. But some of the items are much more advanced (and expensive), such as scientific calculators and jump drives for computers.