Battle Pet Daily Tamer puts a familiar paw on the world map to mark where daily pet tamers are that you have not completed for the day.
From the Map Options on the world map you can choose to selectively disable/enable paws for satchel dailies, non-satchel dailies, or beast of fable (legendary) dailies. From there you can also choose whether to show paws on the flight maps; and if you want to mark stables on the map as well.
Mousing over a tamer on the map will show the level of the tamer's pets and their types.
__ New in 1.3.0 __
Settings to turn paws on/off can also be found in the Interface Options Panel (for using this addon alongside others that take over the world map menu), in addition to the Map Options button on the world map.
For new users, paws are initially enabled for non-satchel and fable(legendary) dailies also.
The 5.3 patch introduced a 'Show Pet Tamers' option to the default UI, that will mark green paws on every satchel and non-satchel pet tamer on the world map. It's a great addition to the default UI. For many users it will be adequate enough that they will no longer need this addon. I highly recommend giving it a try (by disabling this addon if it's already installed, then checking 'Show Pet Tamers' on the world map) to see if it will suit you.
However, the default implementation continues to show the paws after the daily is completed, it doesn't differentiate between satchel and non-satchel tamers, and it doesn't support Beasts of Fable pets. So this addon will still continue to serve those roles.
04/04/2013 1.3.0 added interface options panel as an alternate way to change settings, non-satchel and fable dailies enabled by default for new users
12/02/2013 1.2.10 added option to view stable masters
09/25/2013 1.2.9 fixed a couple pet types in tooltips for 5.4 changes
09/23/2013 1.2.8 adjusted Aki the Chosen and Courageous Yon coordinates
09/21/2013 1.2.7 adjusted Pandaria taxi coordinates
09/16/2013 1.2.6 moved Aki the Chosen to Mistfall Village
09/11/2013 1.2.5 added Little Tommy Newcomer pet daily in Timeless Isle
07/24/2013 1.2.4 added option to show paws on flight maps, paw resource pool
05/21/2013 1.2.3 tooltips display which book a beast of fable is for
05/21/2013 1.2.2 release version for 5.3
05/03/2013 1.2.1 added coordinates for book 2/book 3 paws on world map
05/01/2013 1.2.0 toggle window removed and default's "Show Pet Tamers" option commandeered. beasts of fable split into three different quests
03/14/2013 1.1.8 fix for fabled paws in all localizations (numbered quest objectives instead of by name)
03/08/2013 1.1.7 added paws for the 10 fabled beasts (while quest is active) and option to display them
03/06/2013 1.1.6 added Sara Finkleswitch and Gentle San (Beasts of Fable daily)
02/16/2013 1.1.5 added limited TomTom support (ctrl+right click paw to /way there)
01/06/2013 1.1.4 added Jeremy Feasel (Darkmoon Faire) daily
01/01/2013 1.1.3 changed Merda Stronghoof's quest id from 31817 to 31872
12/29/2012 1.1.2 removed pre-requisite system, added expansion to tooltip
12/29/2012 1.1.1 removed NR paws from EK map, MP paws from KL map, manually added Bordin Steadyfist to Maelstrom maps
12/28/2012 1.1.0 astrolabe replaced with static data, paws created on demand
12/22/2012 1.0.5 added toggle window onto worldmap for turning paws on/off, removed panel option
12/21/2012 1.0.4 code cleanup
12/20/2012 1.0.3 overhauled pre-req system to work with both factions
12/18/2012 1.0.2 added non-satchel dailies (default off), fix for tooltip on full-screen map, temporary option to ignore pre-req dailies until horde dailies confirmed, right-clicking paw will zoom map out
12/16/2012 1.0.1 pet type icons on tamer tooltips, temporary fix for alliance/horde pre-req weirdness for taming EK/kalimdor
12/15/2012 1.0.0 initial release