Change the default refresh rate in seconds for the Vienna RSS reader to whatever you want. Anything less than 1800 seconds might be considered bad netiquette, but it's useful if you're only subscribed to internal feeds (e.g., activeCollab, Connector).

defaults write uk.co.opencommunity.vienna2 CheckFrequencyInSeconds 60

Replace username/password with your info. The message is posted as the status text.

curl -u username:password -d status="" http://twitter.com/statuses/update.xml

Postgres was installed through darwinports, so

/opt/local/lib/postgresql81/bin/pg_ctl -D /opt/local/var/db/postgresql81/defaultdb/ start

Get Japanese (and other multibyte, ascii-unfriendly languages) working in the Terminal.

.inputrc (bash)

set convert-meta off
set meta-flag on
set output-meta on

.cshrc (tcsh)

set dspmbyte=utf8

.vimrc

:set enc=utf-8
:set fenc=utf-8

And don't forget 'ls -w' or 'ls -v' to display files and directories.

Preferences: Uncheck 'Emulation > Escape non-ASCII characters';

More at Apple Support - Topic: Displaying foreign characters in the Terminal command line.