$4,000,000 dollars
     Start a new tower. Before you do anything click on the lobby tool
and  go  to the far left bottommost corner and click the lobby tool on
level b10 on the corner and get $2mill more than you started out with.

Extra Cash
     When  cash  reserves  dwindle as residents sell your condos, drop
the  price  of  the  condo  to $40,000 which clears its bad name, then
raise it to $200,000 and it will sell, netting you a tidy profit.

Loads of money
     Start  a  new  tower, save it, then exit to DOS and change to sim
tower  directory  (cd..,  cd  maxis,etc.).  Then  type  debug[name  of
tower].tdt,  now  type  "e 100 00 24 0* 00 85 ff ff 00" (replace the *
with the star rating you want. finally, type w then q to exit.When you
reload  your  tower you should have tons of money, and the star rating
you wanted. Have Fun!

More Lobby
     When  you  are building lobby press control+shift. Then the lobby
will be 3 times high.

More money
     When  starting a new game, go to the very bottom left-hand corner
(under  ground)  and  click the lobby outline there. When you do this,
your starting money will double to 4 million. Have fun.

Nudie bar
     Go  to level 69 and type nudie when you build a lobby there, then
click on the building to double the amount of money you get from it.