| http://www.w3.org/ns/prov#value | - If you???re on the road a lot, your smartphone is an essential tool ??? there???s an app for just about anything you can think of.Here are a handful that are particularly worth having for those who spend a lot of time in cars, planes and hotels:.ExpensifyThis one is ???designed to be a complete end-to-end solution??? for tracking travel expenses and itineraries, says David Barrett, founder and chi
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