knoppix has a plethora of cheat codes that let you pass instructions to the kernel and control the boot process which are very helpful in order to, for example, change/set up a user home directory to a mounted USB micro or pen drive, so that all configurations are automatically saved and reloaded and Linux has more space free to do its things faster than if it had to access the DVD drive.
http://knoppix.net/wiki3/index.php?title=Cheat_Codes I found myself using a lot: knoppix no3d knoppix toram knoppix init 2 knoppix fromhd=/dev/sda1 Boot from previously copied CD-Image knoppix bootfrom=/dev/sda1/KNX.iso Access image, boot from ISO-Image Why don't I go for a full installation? Well, I would find DL cheat codes much better than having to walk around carrying a laptop. You would just need a miniDVD (which holds 1.46 GB (enough for a barebones DL)) and a USB drive, which would both easily fit in your front pocket. lbrtchx