If you're hoping to save money at the gas pump, look no further than your smart phone.
"They're gonna reach $5 per gallon soon, huh?" Sioux Falls resident Jermiah Price said.
Price says the sticker shock alone keeps him home more often, and he's hit his breaking point.
"It's about there. Gas is definitely high. I sit in the house. I'm never one of those guys to sit at home, but I don't have a chance because gas is so expensive you don't want to waste it driving around," Price said.
But instead of driving all over to find the cheapest price per gallon, you can actually just get it at your fingertips in your smart phone because there's an app for that.
"It's amazing how often people don't know with a smart phone what they're going to get," Andre Luckett with Verizon Wireless said.
Luckett says more than 2/3 of his customers now have smart phones and use the apps that go with them. The most popular gas application is a free app called Gas Buddy.
"You can see regular unleaded. Mid-grade fuel and what the station looks like. So when you drive down the road, you can get a picture of it," Luckett said.
The application uses GPS to track your location. It groups stations by brand, but it also lists price per gallon for premium, regular and even diesel fuel.
"Being able to find gas right around the corner or if you're out of the city and traveling somewhere, you can find gas with the application nearby," Luckett said.
"I'm usually on my phone for Facebook and stuff like that, I guess," Kody Baltzer said as he topped off his tank.
Baltzer isn't the only one who hasn't caught on to the trend. And while it's certainly not a craze yet, if the price keeps climbing, it just may be.
"I'm sure once it gets to about $4.20, I'll be using it looking for the cheapest gas there is," Price said.
Luckett says some apps also let you program how much gas you buy and then reward you with gift cards after big purchases.