I don't play the guitar; I play the mandolin, but as such I can play the guitar if I want to, so I'm gonna answer anyway :p:

The first songs I learned, which are a bunch of really simple tunes you can play and sing at the same time (singing them convincingly is of course a different matter):

Conway Twitty - Lonely Blue Boy
James Carr - Pouring Water On a Drowning Man
Aretha Franklin - Running Out Of Fools

Last song I learned was a while back. I think it was Inside Out by the Traveling Wilburys. I don't really take playing very seriously anymore though - just treat it as a bit of a laugh, or a way to get a free pint if there's an acousitc night on down the pub.

1st song learned: "Love Me Tender" by Elvis Presley
Last: "Sing Like the Saved" by the David Crowder*Band

First song I ever learned on guitar? I don't know if I can remember that far back, but I think it was The Beatles "Day Tripper". Last song? An accompanying part to a jazz piece that my friend composed for school.

For me, it was Wish You Were Here by Pink Floyd :)

edit :

Ah right, the last .. Well, not that it was particularly hard, but Wond'ring Aloud by Jethro Tull was my last!

I love Jethro Tull. I get pumped every time I hear Crosseyed Mary.

that's why you get a nice collection of sub-$100 pawn shop special guitars to keep in random tunings around the jam room heheh.

Oh! you need open C7? that's the blue guitar haha

I learned Heart-Shaped Box by Nirvana. To this day I still use it as a gauge when tuning to Drop D.

i always saw the tuning for that one as a half step down AND dropped D in magazines.

while there are obviously other versions out there tabbed out to dropped D, if you're using the track to gauge your tuning by harmonizing to the recording there's a good chance you're going a half step too low.

Oh, huh. I was just doing it from memory. It seems to be right when I play other stuff in that tuning.

from memory you'd be fine, it's just where you mentioned using it as a gauge it gave me the impression of tuning along to the disc which might not be that accurate. you sound like you're doing it right, but there might be others reading this and thinking harmonizing with a disc is a simple way to nail alternative tunings (it is) but you need to be certain about the recording in question first.