Revert button locations:
Latest editions of Ubuntu have moved the Close, Minimise and Maximise buttons to the left of the title bar. Launch gconf-editor by typing it in the ‘Run Application’ window. Browse to Apps > metacity > general, look for “button_layout” on the right panel. Change the value in the “button_layout” from close, minimize. maximize: to menu: minimize, maximize, close. A restart should bring your things back inorder.
Reduce Wait time:
After full installation, Ubuntu is set to be the default operating system to boot up if no key is pressed within 10 secconds on a multi-boot system (say with Windows). You can do that easily with a graphical application (No more messing with /X11/boot/grub/menu.lst). Istall startup-manager either from synapticcs or via terminal by typing $ sudo apt-get install startupmanager.
Once installed, it can be found at System > Administration > Startup Manager. Not only can you change the default operating system and Timeout, you can adjust resolution, colour depth and even create a rescue floppy in case you ever get stuck.