Money Manager Ex is a free, open-source, cross-platform, easy-to-use personal
finance software.  It primarily helps organize one's finances and keeps
track of where, when and how the money goes.

MMEX includes all the basic features that 90% of users would want
to see in a personal finance application.  The design goals are to
concentrate on simplicity and user-friendliness -- something one can use
everyday.

WWW: http://www.moneymanagerex.org/