Personally I use AutoCAD to draw my schematics (and everything) but purely because I already have it, use it daily for work and have done for 12 years. There are other, cheaper (and free) alternatives though, google will bring up a load of them.

ExpressPCB is free and takes care of schematic drawings and PCB design. Draftsight is free CAD software very similar to AutoCAD. Photoshop/Paint/etc. can be used if in a bind.

i use EXPRESSPCB its free,makes any schematics and then pcb design to have sent out and have boards made also very easy to use in work i use ORCAD ,but now i send to another person in the lab that uses AUTOCAD PRO i had it at one time ,but with all the other programs i have ,it takes of my space and is harder then EXPRESSPCB where i send my boards out to be made

I use NI Multisim aka Electronics workbench

I use have multisim electtronic workbench ,and i think i still have the manuals and cd ,have the pro version over 15 years ago i used ORCAD has anyone heard of it ,was for windows 95

Now i use a simple free program and can make my own PCB and order them

expresspcb free download

FreePCB is awesome http://www.freepcb.com/

We use Altium - but it's expensive!

i have altium

I love how electronics workbench will do circuit simulation Most any circuit i can come up with the program can do simulation on it and has many usefull tools built in. I say most because there is some i mess with that cant be simulated as i use alot of unconvensional teckneaks like open loop not closed like most circuits use hence the word circuit. there are programs out there that will do what i need but i cant aford them yet sofare the only one i have seen i cant remember the name of butit costs over 5 mil so i need to kill another 10-20 before the cost comes down to where i maybe able to start thinking about saving for it

oh ya and my kit finaly came yesterday so i can start playing:D:D not sure why all i have done with it is open the box lol

ELECTRONIS workbench is great for begineers,but it takes time to use it

SO i i use a breadboard to make my designs and its a lot faster.

DJ FREEPCB is good until i got expresspcb you can make any new part not in the database ,plus 3 layer board and cost for a board is very cheap $59 for 3 boards no silkscreen ,shipping $8