Going out with baby

How do y'all take baby with y'all when you go out to places? I've had to take my one month old with me sometimes. Sometimes she's ok but other times she's crying and crying and it's hard to get her to calm down being in public. Usually car rides calm her down but at times she just cries in her car seat, even if she is fed and I chnage her diaper. Not sure why she fusses some days, any suggestions? Could she just not want to be out some days?