This is a collection of bash settings and configurations I prefer

~/bash_profile

1. Set INTERACTIVE=1 mode
2. loads .bashrc
3. If configured starts screen
4. Set titles for ssh client tabs/windows

.bashrc

1. config section
2. sources /etc/profile
3. ensure colours are sourced
4. load default, OS or host specific settings

.bash.d/default settings

1. default.behaviours: shell options, history config, aliases and exports (ie: paths)
2. default.functions: various bash functions which save me time
3. default.complete: some command line completion configs

Load OS specific script for example Darwin.behavours, cygwin.functions. Or, host specific scripts sunrool.local.functions, my_host.domain.behaviours

I usually use screen so, included some reasonable screen defaults in .screenrc