Well don't hold back now hon tell us these nice "sweet spots" of yours were you can solo or 2-3 man to get better exp.

They aren't "mine". Other people have found them. I just use google allot and read up on old ffxi forums like allakhazam and ffxiah. Also i stumble upon some by Adventuring. ever heard of it? People have already given suggestions for early levels in this thread. Let me make a mid level one for you. I dont remember levels exactly but there is a Gob camp in Zi'tah not far from the outpost that is manageable for 2-3. i Want to say the level range is late 30's but don't quote me, go see for yourself.

This. I have a level 30 WHM that I just use to PL me from 0-14 on EP's and 14-through the dunes parties until I get "better" qufim parties. Not only that but having a soon to be full-time teleporter and sneak/invis mule is always a benefit.

It seems as though most folks already responded with the answers I would have given. Dangruf Wadi is the spot I always take my level 10's to, and always stick around there until lvl 15. Those worms and gobs to the south of the entrance zone make it such a nice spot, seeing as they all drop decent things to sell in the AH, as well as things you could use along the way.