Useful TortoiseHg extensions

Question

Guys, could you please describe TortoiseHg extensions which comes with the installation package? What do these do and which you use on the daily basis? What are more useful?

This is the list from TortoiseHg v1.1.5 for Windows.

[extensions]
; extensions shipped with Mercurial by default
;
;acl =
;bookmarks =
;bugzilla =
;children =
;churn =
; Warning: the color extension is not recommended for Windows
;color =
;convert =
;extdiff =
;fetch =
;gpg =
;graphlog = 
;hgcia =
;hgk =
;highlight = 
;interhg =
;keyword =
;mq =
;notify =
;pager =
;parentrevspec =
;patchbomb =
;progress =
;purge =
;rebase =
;record =
;schemes =
;transplant =
;win32mbcs =
;win32text =
;zeroconf =
; Extra extensions bundled with TortoiseHg
;fold =
;hgcr-gui =
;perfarce =
;hgeol =
;mercurial_keyring =

Answer 1

My personal favorites:

graphlog    ASCII graph next to changesets to visualize branching.  
mq          Handle local changes as a series of patches that can be edited.  
purge       Mass delete of unrevisioned files (and ignored files with --all).  
rebase      transplant a branch onto a different changeset.  
transplant  Copy a changeset onto the local changeset.  

Of these, I use mq and purge daily.