Is there any ways to save -only- when i want to save/quit the game ?
Not that I've noticed. You could definitely muck around with the code to get that sort of effect, but I've no clue how. The best you can do is get it to only save on zone change (and when you tell it to, of course). You could give a shout over on the T4 forums and request that. Dunno if it'd get in until the game's more finished, though -- a big reason for regular autosave is simply the aid it gives to testing and debugging.
Hmm so I'm seeing items that have the size +1 category. Looked it up on google but couldn't find any info. What does it mean?
It means you get one size category larger
Seriously though, it doesn't do much right now. There's some brawler talents that are messed with by size cat, but it's generally only meaningful for halflings (and yeeks, I think.). There's a few other talents that interact with size cat in various ways, but they're fairly rare.
What potion is better from the halfling alchemist? +5 luck or 2 class points? I'm an elf shadow rogue btw.
Probably the class points. Luck is nice, but class points are considerably more scares than +luck kit.
I don't get what you mean. I can't seem to find a page on the wiki that tells me what luck is for either.
It's at least theoretically possible to get five (or six, I think) potions from the alchemist quests, if you get
really freaking lucky. It's probably not going to happen. Usually, you're only going to get three or four.
As for luck, it gives a little bonus to most things. +Acc, +dam, +SP, +saves, +other stuff. Unlike earlier ToMEs, it has no effect on item generation. It's actually pretty decent, but class points are considerably
more decent, heh.