I filled up this week for $1.77 in Bluffdale — much less than the $4.05 I paid earlier this year for the same unleaded fuel. Pump prices vary a lot right now, so it pays to go to www.utahgasprices.com or www.saltlakegasprices.com before you fill up to see if there's a cheap fill-up spot near your home or office. On Thursday, unleaded was going for as little as $1.75 per gallon at a station in North Salt Lake. Interested in how Utah's prices stack up to the rest of the country? Go to the Web site of travel-services agency AAA, http://www.fuelgaugereport.com. Click on "national average" or "state by state" averages for more information.