Install skype on Debian 7 "Wheezy" amd64 (might also work on Debian 6).

skype-install.sh

#!/bin/bash

# Download http://www.skype.com/en/download-skype/skype-for-linux/downloading/?type=debian32
wget -c 'http://download.skype.com/linux/skype-debian_4.1.0.20-1_i386.deb'

# Try to install (it will fail)
dpkg -i --force-architecture skype-debian_4.1.0.20-1_i386.deb

# Add i386 architecture to the system
dpkg --add-architecture i386

# Update package lists
apt-get update

# Install and resolve dependencies
apt-get -f install

printf "= ^ . ^ ="