Paper Mate mechanical pencil!
http://ak.buy.com/PI/0/1000/226192841.jpg

They are refillable (so any lead size works), have a twist eraser, and are good for fine detail.

For loose sketching and rough doodles, I like grabbing a pack of cheapie BIC pencils.
http://www.craftygiftshopping.com/S.....s_5colours.JPG

They always have them on sale near back-to-school time.

If you're worried about thin lines though, I suggest investing in some good pens.
That way you can be as messy (so long as the pencil is light) with your sketch as you please, and then precise when it comes to inking!

There are all kinds of pencils, charcoal and woodless behave WAY differently! Mechanical is definitely the most precise.

Also from experience, I've found white erasers to be the best for mechanical pencil. You can get the click tube ones too!
Like so: http://3.bp.blogspot.com/_MZWzM5PuJ.....process_04.jpg

Although, having a bigger eraser can still be good for covering large areas.
General's TRI TIP is my favorite for that~
http://www.pencils.com/sites/defaul.....i_Eraser_0.jpg

for a sharp point on wooden pencils use 2H lead, you can also buy 2H lead sticks, they are harder and you have to push which gives a lighter but more precise line.

I love pentel for my pencils mostly (mechanical) especially the drafting ones, they can be found at art stores where they sell (architectural) drafting supplies. Michael's usually has a few. Also, TUL is a good brand of pencil but 2 packs will cost you about $10 however even Safeway has them!

Thank you for your input : O, I use a .5 mech pencil and honestly it's too dark and the lines are too thick that's why I can't draw small, it bugs me :<

I use 6H or HB pencils, and sharpen them with a craft blade. ^^

That is very brave of you :O!

Haha more like very stupid. I don't have a handel for them. xD
Don't learn from me kids.

http://www.dickblick.com/products/s.....kTracking=true

They have a couple .3 mechanical pencils at blick. Even though some can be expensive, it's well worth the investment! :D

Yeah draft pencils huh, seems to be the real answer. I just can't seem to draw small enough or add detail cause .5 is too thick!