Call me old school, but I don't want to depend on a 24/7 roadside assistance service for a dead battery, flat tire etc. Where I live and travel to and from work cell service is spotty and best, so chances are if you have auto troubles your not going to have cell service to call anyone anyway. I keep a flashlight, a jumpbox,a small tool box with all the tools I need for a car, A blanket, first aid kit and jumper cables , 4 way lug wrench, and a floor jack in my and my wifes car. FWIW heres a quick story my wife is now 6 months pregnant, well 2 months ago, she had a flat tire in one of the spots where there was no cell service. She is a high risk pregnancy and the Dr. has put her on a weight restrictions along with a ton of other restrictions. She tried to get a text or a call out for about 15-20 minutes and nothing, so she decided she was gonna change the tire(at the time she was on the night shift.) So she grabs her .38 puts it IWB and gets out of the car and opens her trunk, Mind you she said about 10 cars had passed and no one offered to stop and help or anything. Well shes getting the floor jack out and the lug wrench and a cop passes by, and apparently he saw her gun inside her waistband so we whipped his car around and flew in behind her, He gets out and asks what the problem was, She just kind of looked at the jack, the lug wrench her spare tire and the flat tire and kinda gave the cop a really???? look. Anyways so she tells him she has a flat tire and no cell service and she wasn't about to get out of her car at 430 A.m without her pistol, She explains shes pregnant, high risk etc...The cop only replies with Let me see your pistol permit, she says ok no problem and she shows him her permit, well, he replies please remove the handgun from your waistband and place it on the roof of the car and I'll stay here until you change your tire.She asks the officer if he would mind helping her put the new tire(she has a full size spare) onto the lugs because its over her weight limit etc. The police officer replies no Ma'am I will not, I'm not going to get my hands or uniform dirty I just came on duty, She said ok thats fine and changed the tire, The officer did sit there in his car while she changed the tire, but he wouldn't even help her put the new tire on , granted it's not his job, but come on what would it of hurt for that officer to help her get that tire up on the lugs???? Anyways kind of went of on this post but just posting a good reason why someone might want to be self sufficient instead of relying on cell phones etc. Electronics fail, Tools while can fail also are more reliable than just a cell phone, IMO in this day in age a cell phone gives a false since of security, granted I never leave home without my phone, but I also keep said tools in my car at all times. Also a floor jack is worth it's weight in gold if you have a flat tire compared to the jacks provided in new cars...