Configuring Eclipse to suit your needs

Well, Eclipse has lots of things you can configure, and below are some things that really make a difference...
-- actually, there is only 1 tip currently, but I intend to make it grow with the questions I receive about it, now that I have a good place to put those ;-)

• Configuring auto-refresh: Eclipse by default (at least on 3.1) does not refresh things automatically, so, if you make changes outside of the workspace, you will not see the changes until you refresh it (F5 on the navigator). However, you can change the default setting and ask Eclipse to refresh automatically.
  
  To set auto-refresh, go to window > preferences > general > workspace and check the refresh automatically check-box.
  
  NOTE: not doing so may have some specially strange results with .pyc files not being deleted, as pydev will only acknowledge that the .pyc file exists on a refresh.