Experts says driving too fast can waste gas, but it can also cost you in another way this Labor Day weekend. Iowa State Patrol spokesman Lieutenant Robert Hansen says they’ll have 80 extra troopers on the roadways this weekend.He says they’re participating in the federal “Operation Care” or combined accident reduction program — which provides money to bring troopers in from their day off. Hansen says the troopers will look to keep the roadways safe.He says they’ll look for the violations that are most know to cause accidents, such as excessive speed and unsafe passing. Hansen says troopers aren’t the only ones watching — motorists with cell phones give troopers lots of tips about bad drivers. He says drinking and driving is also a concern. He says last year there were two fatal accidents during Labor Day, and both involved alcohol. He says there was a total of four alcohol-related accidents statewide. The extra troopers hit the road this afternoon (Friday), and will patrol the highways through Monday.