Flames of [Insert Place]: Use the maps on Wowwiki. I have a few details in last year's post. Honor and Desecrate everything. Even if you don't want the holiday stuff, you can still get xp perks. I'm 78 and get 22,600 experience from desecrating and 10,800 experience from honoring. I think the xp scales based on your level, but if you're behind on your levels and want to pwn your current area, this is a cheap and easy way to get ahead.
City Flames: Get to the opposing city flame, wait for mobs and other players to get busy with someone else (busy server) or out of the way (slow server) and click the flame. It'll give you a [Flame of City] that starts a quest to turn it in. Move on to the next.
Kill Ahune: The quest leading up to killing him gives you a nice tabard and 20 blossoms, so consider that. He also occasionally drops a pet.
Pole Dance: Get all the clothes (shoes, dress, shoulders) and dance at the pole for 60 seconds.
I hate Torch Catching. Buff catch zone, imo. (It's really hard to judge distance that accurately.) Took me about 30 minutes of nonstop trying and camera angling to get the quest done that gives you 5 juggling torches and opens up the juggling torches on the vendor. Once you get this, the rest is downhill.
The nature of juggling torches is this: they disappear from your bags when you throw them but they return when you catch them. So you don't lose them, but you do need a reasonable number to make the 15 second mark. With just 5, you have to wait for them to get back to you to throw them again. I tried 10 torches, hotkeyed, and got it. So just spend 5 flowers on another stack from the vendor and you're gold.
Go to Dalaran. Find a quiet spot. Hit the hotkey and click the spot under your character's feet. Do this rapidly until you get the achievement.