5 things you need to do after you purchase XPS13 9350/9343

First, Using Dell Update to update Dell Utility, if you would like. Register your PC in order to have 1 year warranty.

Second, right click Start button, choose Manage, navigate to Device Manager, update the driver of Intel Iris Display Adapter, Firmware, Realtek SD Card Reader, Integrated Camera, and maybe any other component you can find updated driver using Device Manager.
Note: Updating firmware and Iris Display driver will resolve issues about screen flickering, hang-up when wake it from Sleep, noisy fan and other potential issue.

Third, Choose a short non-standard TF to SD adapter, to extend you storage. Otherwise, standard SD card cannot fully stuck into the body of XPS13. Suitable TF to SD adapter is about 9mm shorter than standard SD card.

Fourth, get a Bluetooth Mouse to easy your daily use.

Fifth, get a enclouse. A enclouse for iPad Air 2 may (or may out) swallow XPS13 inside but with a fraction out of the mouth. While a regular enclouse for other laptop may be too large. Maybe you can get a official leather suit for your XPS13.