Whisker is a brand new menu for XFCE4 (and Xubuntu). The XFCE desktop environment did not suffer big modifications in the last few years.

Whisker is an innovative alternative for the XFCE default menu, including a modern search bar and enabling users to easily access all the installed apps from the system, or access applications by categories. It also remembers the last 10 used applications.
The users can also create a list of favourite apps easily, by using the “Add to favourites” option and rearrange them easily. (screenshots from here)
For now, there is no ppa for this, but the Whisker version for Debian 7 works also on Ubuntu 13.04 and Linux Mint 15 Olivia.
$ sudo sh -c 'echo "deb http://download.opensuse.org/repositories/home:gottcode/Debian_7.0/ /" >> /etc/apt/sources.list.d/xfce4-whiskermenu-plugin.list '
$ wget http://download.opensuse.org/repositories/home:gottcode/Debian_7.0/Release.key
$ sudo apt-key add - < Release.key
$ sudo apt-get update
$ apt-get install xfce4-whiskermenu-plugin
The Debian Wheezy package, installed on Ubuntu and Linux Mint and downloaded from the OpenSUSE servers. Do you feel the irony?