Things are going to slow down a bit over the next couple of weeks for that back-to-school period. When that happens, I plan on grinding out a few titles on my Rit until things pick up again. I'll be doing a bit of everything (HM missions, Vanquishing, Mapping, Skill-Capping, etc.). I'll be sure to throw out in guild chat whatever I'm doing, although you'll no doubt hear me announce it on vent too.
TIPS:
Lightbringer title: If you want to get Lightbringer maxed, leech points off of a Perma's DoA Ravenheart Gloom run. Fastest way, I think. Not sure if that got nerfed yet or not, but it's fast if not.
Kurzick/Luxon titles: Easiest way is DTSC or MQSC, which everyone does. You need a monk for those runs though. Both builds are in our Guild Wars Builds Vault forum. Eternal Grove French Districts (DTSC) or Aspenwood (Luxon) German Districts (MQSC) for PUGs but our guild/alliance does DTSC pretty frequently. Otherwise, your best option is to repeat-vanquish a zone normally for faction points. For Kurzick I recommend either Ferndale or Arborstone.
It's not much faction, by any means, but if you still have characters that need Protector or Guardian of Cantha, get Factions books for those characters while you get them through and turn them in.
Guardian title(s): just throw out in guild chat any mission(s) you need and/or feel like doing. Most missions - even in HM - are quick enough that it won't be hard to get company for those. I still need a bunch myself on my Rit, and if I'm not busy I can just grab another char who needs anything else.
EotN Rep titles: come along for the guild's dungeon runs and fill out dungeon books. Between runs we do (either SC or balanced) and the dungeons that can be run by either the guild/alliance or PUGs, you shouldn't have much trouble getting one of those complete. A full HM dungeon book is 60,000 rep points.
Another strategy is to do HM mission speed books. These are basically doing HM books with only Curse of the Nornbear, Against The Charr, and A Time For Heroes, then turning it in. Just those three quick missions will net you around 3,000 rep points I think, and all of them can be done in less than a half hour.
Keep an eye on the Zaishen Daily Quests. Whenever the Zaishen daily mission is an EotN one, it usually rewards a large amount of rep points (1,000 or more!) in addition to its zcoin reward. These rep point rewards are the same even in NM (only the zcoins reward amount changes between modes), so it's well worth getting the EotN zquests on all your available characters and stocking up on them until you have the time to do them.
Cartographer titles: Use TexMod with Cartography Made Easy. It's the most-efficient way to get this done nowadays. In the event you can't get the hang of it (many of us use it frequently so there is plenty of help around), there are Cartography threads on Guild Wars Guru in the Explorer's League forums that list frequently-missed Cartography spots. I think in those Guru threads there are fully-explored maps for viewing, and you can compare. If it comes down to it, I can take screenshots of my Ele's maps. She has Legendary Cartographer.
There are glitches in Cantha which can get you extra space. I don't know of them, but throw it out in guild/alliance chat, as there are no doubt others who do. In Tyria, you can map the bonus area in Dunes Of Despair (HUGE area behind the base) and there is also an area in Frost Gate mission where you can go off the path and map spots not originally intended for travelling. There is LOTS of mappable leeway in Tyria. If you map areas in missions (for some you have to go off the main mission path to get to mappable spots) and explorable zones, you should get it fairly easily. Nightfall is pretty picky. Make sure you map the area in the Remains Of Sahlahja Challenge Mission. It counts for Cartographer. Make sure you map the low-level arena outposts. If you are missing the tutorial area in Cantha (either due to skipping the tutorial on a Factions char you made or not being Factions-born), you can reach those areas for mapping any time the Shing Jea Boardwalk opens.
______________________
