Great comment from Fausto Di-Trapani on my posting An Updated Directory Of Programs Designed For USB Drives. Fausto points to a great little program that removes the need to browse through sub-folders when running applications from a USB drive:
Being an extensive traveller, a portable computing environment is a MUST. A great little program I came across is RUNit. It is a little program launcher with all its settings stored in an ini file (portable). I wrote a little batch file to edit the ini file to refer to new locations of programs when the drive letter changes, so far this little program has been the most useful of the lot for me as it allows me to easily access all my portable apps without having to browse through folders.
Thanks, Fausto. Actually RUNit looks like an interesting program in its own right.