.gitconfig and .gitignore files I use - based of drupal git configuration and a few other areas

.gitconfig

# Sample gitconfig
#

# If you have hub install (github helper scripts)
[hub]
  protocol = https
[user]
  name = <your name as you want it in git commits>
  email = <your email>
[branch]
  autosetuprebase = always
# If you use OSX then this helps 
[credential]
  helper = osxkeychain
[color]
  diff = auto
  status = auto
  branch = auto
  ui = true
[core]
  excludesfile = ~/.gitignore
  editor = vim
  autocrlf = false
  safecrlf = false
  ignorecase = false
[apply]
  whitespace = nowarn
[mergetool]
  keepBackup = false
[difftool]
  prompt = false
[help]
  autocorrect = 1
[push]
  # See `git help config` (search for push.default)
  # for more information on different options of the below setting.
  #
  # Setting to git 2.0 default to surpress warning message
  default = simple
[merge]
  ff = false
[diff]
  renames = copies
  algorithm = patience
  renamelimit = 9720

# Aliases are selective, use those you think make sense.
[alias]
  co = checkout
  count   = !git shortlog -sn
  promote = !$ZSH/bin/git-promote
  wtf     = !$ZSH/bin/git-wtf
  rank-contributers = !$ZSH/bin/git-rank-contributers
  count   = !git shortlog -sn
  a = apply --index
  lg = log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --
  df = diff -M25%
  p = format-patch --stdout
  assume   = update-index --assume-unchanged
  unassume = update-index --no-assume-unchanged
  assumed  = "!git ls-files -v | grep ^h | cut -c 3-"
  snapshot = !git stash save "snapshot: $(date)" && git stash apply "stash@{0}"
  ours   = "!f() { git checkout --ours $@ && git add $@; }; f"
  theirs = "!f() { git checkout --theirs $@ && git add $@; }; f"
  st = status

.gitignore

.DS_Store
.svn
*~
*.swp
*.rbc
.idea