How do you use gdb?

I decided to find out how our C/C+ *nix practitioners use the gdb debugger.

Here is what I typically use:

1. b - break filename.c:line #, function, filename.cpp:function, className::Member
2. n, c, s -- next continue step
3. gdb program name => set breakpoints ==> run [parameter list] (I do this to set break points before the program starts)
4. l - to list the surrounding source code.
5. attach processID 6 break [location]
6. gdb programName corefile.core (to examine why app crashed)
7. I also sometimes set breakpoint at exit function (break exit) to examine program stacks
8. info b to examine all the breakpoints
9. clear [breakpoints list ]

How do you use it?