what are DeMinimis gifts?

De Minimis Fringe Benefits
The 2010 IRS’s Publication 15-B Employer’s Tax Guide to Fringe Benefits
defines a de minimis benefit as, “any property or service you provide to an employee
that has so little value (taking into account how frequently you provide similar benefits to
your employees) that accounting for it would be unreasonable or administratively
impracticable. Cash and cash equivalent fringe benefits (for example, use of gift card,
charge card, or credit card), no matter how little, are never excludable as a de minimis
benefit,… ” http://www.irs.gov/pub/irs-pdf/p15b.pdf