If you live in a university town, or near a college, you are probably familiar with the problem that follows. "Students" tend to fill the local Starbucks at all hours, laptops open, avoiding the library that their parents or the taxpayers have so lovingly filled with wireless access and books. Which leads me to my idea....
Starbucks should restrict access to wireless. They could print a code on each cup that would allow the user a reasonable period of wireless access. Time's up, you have to buy another drink, so that one tea at 10am couldn't be used to hold a seat until 3pm. Or, they could simply print a sheet of stickers with codes on them that the barista could affix to cups or bags, rather than printing new cups. You heard it here first!