I just switched from Ubuntu to Xubuntu. I'm just trying to format a USB drive, but I don't find the Disks utility which I used on Ubuntu. Do I need to install something in Xubuntu in order to format my USB drive (what do you suggest?), or is there a tool that comes by default that I can use?
You could use
gparted. Install by opening a terminal by pressing Ctrl+Alt+T and typing:
sudo apt-get install gparted
If you would insist on using the disk utility:
sudo apt-get install gnome-disk-utility
Sorry for the short answer, but that's all. ;)