Don't underestimate the lanyard. This simple little cord can save your cell phone from a lot of mishaps that seem to plague cell phone owners. Incidents like dropping your phone in the toilet (that seems to be a major cell phone incident) or on the pavement. Lanyards can save your phone from those pesky drops.
Most cell phones have a specific corner built for the use of a lanyard. So if you don't have one, they are very cheap and can be found anywhere. Online stores and any store where cellphone accessories are located should carry them.
So get on board! Your cell phone will love you for it.