Mobile card scanners are one of the biggest innovations to hit field services in quite a long time. Anyone who has spent time managing these kinds of outfits can tell you that getting paid consistently is one of the hardest rhythms to maintain. Customers routinely forget bills, ignore them or are flustered by what they think are inconvenient options for payment. Mobile card scanners, if you are unfamiliar with them, offer a solution to this problem. These new scanners plug directly into modern mobile phones and allow you to swipe cards over your wireless network wherever you are. These scanners offer the awesome advantage of taking card payments anytime and anywhere. This has really exciting applications for industries like electrical contracting, AC repair and other field service occupations because it allows you to take payment for the invoice the minute the job is done. However, there are some business owners who are reluctant to embrace this trend, and they have some good reasons.