Debian 9 On The Thinkpad T43

Net installing Debian 9 Stretch on the old and trusty laptop, mainly because I want something a bit more responsive than Linux Mint XFCE, either the plain vanilla one or the Linux Mint Debian version.
Took a couple of hours and everything seems to be working A Ok, except for the WiFi card, that doesn't work out of the box.
Right after the install is over, it uses nearly 3 GB of HDD.

Installed on an encrypted LVM for security.