Wowzers, we've got 357 cheat sheets hereabouts.
- acts_as_authenticated
- acts_as_state_machine
- acts_as_taggable_on
- administrate_me
- agile
- alias
- ambition
- ansi
- arts
- as3_formulas
- ascii
- assert
- assertions
- assert_block
- assert_difference
- assert_dom_equal
- assert_dom_not_equal
- assert_equal
- assert_generates
- assert_instance_of
- assert_in_delta
- assert_kind_of
- assert_match
- assert_nil
- assert_nothing_raised
- assert_nothing_thrown
- assert_not_equal
- assert_not_nil
- assert_not_same
- assert_no_difference
- assert_no_match
- assert_no_tag
- assert_operator
- assert_raise
- assert_raises
- assert_recognizes
- assert_redirected_to
- assert_respond_to
- assert_response
- assert_routing
- assert_same
- assert_select
- assert_send
- assert_tag
- assert_template
- assert_throws
- assert_valid
- association_methods
- asunit
- authorizenet
- autotest
- averylongnamethatwecanfind
- awk
- balloon
- bash
- bash_complete
- bash_scripting
- belongs_to
- benchmark
- blogs
- blow
- boyfriend
- bp
- bug
- bzr
- callbacks
- capazon
- capistrano
- cap_bare
- ccrb
- cheat
- chmod
- chocolate
- colored
- conkeror
- console
- cool_options
- cpio
- cron
- curl
- cut
- darcs
- darcs_record
- database_yml
- datamapper
- date
- death
- delete_me
- deprec
- deprec2
- deprecated
- diakonos
- ditz
- doom
- dpkg
- e
- elad
- emacs
- emacs_basics
- emacs_psvn
- emacs_slime
- emacs_tips
- enumerable
- environments
- exceptions
- fela
- find
- firebug
- fish
- foo
- form_for
- freebsd
- gazpacho
- gem
- gems
- girlfriend
- git
- gitsvn
- git_buildpackage
- git_collaboration
- git_submodule
- git_usage
- globals
- gmail
- grails
- greader
- grep
- groovy_sql
- gruff
- gtd
- guitar
- haiku
- has_and_belongs_to_many
- has_many
- has_one
- help
- heroku
- highline
- history
- hobo
- hobo_template
- hot_chocolate
- hpricot
- htaccess4
- http_status_codes
- husband
- iana_port_list
- into_the_code
- io
- iomodes
- irb
- java
- jedit_ruby_editor_plugin
- kenzu_ryu
- kill
- konami_code
- leopard
- less
- life
- lighthouse
- link_to_remote
- linux
- linux_network_boot
- lipsum
- ln
- lotus_domino_url
- ls
- lsof
- mac_glyphs
- mac_shortcuts
- markaby
- markdown
- mate
- matz_bot
- merb
- mercurial
- microformats_helper
- migrations
- military_alphabet
- misc
- mktime
- mocha
- mustache
- mysql
- mysql_insert
- mysql_update
- nanoc
- netbeans
- netstat
- nginx
- nonsense
- notify
- number_lines
- opensc
- openssl
- oracle
- passenger
- paste
- pastie_vim
- pddd
- permalink_fu
- permissions
- phonetic
- piston
- plugins
- police
- postgis
- postgres
- predefined_variables
- prototype
- python_doctest
- r4fy
- radrails
- radrails_rhtml
- radrails_ruby
- rails
- rails_console
- rails_edge
- rails_environment
- rails_migrations
- rails_plugin_creation
- rails_rake_tasks
- rails_request_object
- rails_reserved_words
- rails_routes
- rails_svn
- rails_tasks
- rails_tips
- rails_to_s
- rails_vim
- ratpoison
- rcov
- rdebug
- rdoc
- readline
- readme
- redirect
- regex
- regexp
- regex_lib
- remind_commands
- rest
- rjs
- rope
- rspec
- rspec_formats
- rsync
- rtorrent
- ruby
- ruby1line
- rubydebug
- rubyio
- rubyprof
- ruby_about_com_example
- ruby_kernel_test
- ruby_keywords
- ruby_mode_strings
- runescape
- s3sync
- sake
- scaffold_resource
- scala
- scp
- scrapi
- screen
- sed
- sed_delete
- sed_numbering
- sed_print
- sed_spacing
- selenium
- selenium_on_rails
- semweb
- seo
- sequel
- servers
- seven_dwarves
- sex
- sh
- shoes
- shoulda
- slicehost
- sness
- solaris_smf
- sort
- spc
- sprintf
- sqlite
- sql_alter
- sre
- ssh
- status_codes
- sti
- strftime
- string
- string_unpack
- strptime
- svn
- svnmerge
- symlink
- syntax
- tar
- taxes
- tempfile
- terminal
- test
- test2
- testing
- testtesttest
- test_spec
- test_spec_rails
- test_unit
- textile
- textmate_rails
- textmate_ruby
- tld
- todoist
- tung
- twitterrific
- ubyubyuby
- unicode
- unix_text
- validations
- vi
- vim
- vim_folding
- vim_goodies
- watir_ie
- webrat
- websphere
- wife
- win32_sc
- wmii3
- word
- wxd
- xmonad
- xpath
- xpath_result_type
- xslt
- yaml
- yui_fonts
- yui_grids
- zsh_array
- zsh_bang
- zsh_case
- zsh_ftp
- zsh_glob
- zsh_if
- zsh_keys
- zsh_loop
- zsh_modifiers
- zsh_param
- zsh_process
- zsh_ranges
- zsh_rename
- ztd
Are we missing a cheat sheet? Why don't you do the whole world a favor and add it yourself!
