I'm going to try to make the definative list. Bear with me.
Santug Claugg is repeating the appearance he made last year, with the same series of quests they had then.
When he first appears there are two quests you could do while he was roaming around the newbie zones being a sourpuss.
Christmas #1: Frostfell - Searching for Clues Where you whack grimps in all the zones Santug was in and get clues, and at the end of the task you are offered a second task.
Christmas 2006 #2: Frostfell - Saving Santug Where you find that Santug is being controlled by the Grinnuch and you have to kill mobs around Everfrost to loot enough gifts to find one to make the Grinnuch happy.
That resulted in a
Santug's Stocking 2-slot 20% weight reduction bag .. err, stocking.
As marvin mentioned, at the time it first came out people didn't know there would be more quests to upgrade the stocking. Many people saw the reward and didn't bother doing it or got the reward and tossed it. Then when Santug came to settle down in the starting cities and PoK to give out more quests to upgrade the stocking there was much petitioning and venting since the quest was no longer available to get the original stocking. They shortly changed it so the goblin would give you a stocking for doing these other tasks.
Santug offered two quests to help him keep up with his workload.
Christmas 2006 #3: Frostfell - Santug's List Which was just whacking more grimps that were still around in the same zones but now dropping List pieces.
Christmas 2006 #4: Frostfell - A Gift for Tinam Where you run around Butcherblock in a quest similar to the PoK quest
Willamina's Needles And of course the quests from
Hargar the Velium Chef Christmas #5: Frostfell - Fishing for a Feast All of the fish needed are tradeable but rare.
Christmas 2006 #6: Baking for a Feast All the food needed is tradeable and the highest trivial item is 155. The only part that needs to be farmed I think would be Brownie Parts. Some foraged bits are needed. {Edit: Oh yeah, eggs. Eggs need to be farmed to make the dough for all these recipes}
Then there is the quest from
Fireworks Engineer Fabdabus.
Christmas 2006 #7: Frostfell - Fireworks
(LOW) and
(HIGH) Where you are assigned dungeons to hunt in to loot and bring back fireworks. You can shroud for that one to get lower level dungeons.
You can give your stocking to the goblin whenever you finish a quest to get it upgraded until you've done them all and have the 10-slot 100% weight reduction
Santug's Stocking. The stockings get lighter in weight until the final one is only .5 weight.
Edited, Dec 18th 2007 9:44am by mfbrownbear