Enough by avser3322

Name: Enough
Author: avser3322
Website: Live Journal
Rating: PG
Link: http://avser3322.livejournal.com/33345.html?view=12865#t12865
Status: One shot
Description: Days before the end of their seventh year Lily is upset and James tries to make it better.

Drool by mutualunderstanding

Name: Drool
Author: mutualunderstanding
Website: www.fanfiction.mugglenet.com
Rating: None
Link: -click here-
Status: Complete
Description: Sirius, the expert on getting ladies, gives baby Harry a chat on how to be a proper gentleman. Harry, however, has other ideas.

Update: Now available from Audiofiction.

Rage, rage against the dying of the light by emers123

Name: Rage, rage against the dying of the light
Author: emers123
Website: UR.org
Rating: PG-13
Link: http://unknowableroom.org/3248/9/
Status: Drabbles, 9 chapters so far
Description:
Drabble collection of the moments in the Marauders' and Lily's lives that reveal their characters and friendships. Because it's not just the big events that count, but the little ones, too.

Some Much Better by avser3322

Name: Some Much Better
Author: avser3322
Website: livejournal.com
Rating: PG
Link: http://avser3322.livejournal.com/21666.html
Status: One shot
Description: Lily returns to the common room to find James waiting for her. Pure Fluff

The Two-Step of Death by Lady_Game

Name: The Two-Step of Death
Author: Lady_Game
Website: UR.org
Rating: PG-13
Link: http://unknowableroom.org/929/1
Status: one shot
Description: In the end, they all dance to the music of two words and a flash of green light. These are the stories of the last ten victims of Lord Voldemort. A 10x100, post-HBP.

Note: the end of this is amazing, it's per-DH so most of the deaths don't really happen but it's still really good.

The Engagement Party by Cymberline.

Name: The Engagement Party
Author: Cymberline
Website: UR.org
Rating: G
Link: http://unknowableroom.org/3230/1
Status: one shot
Description: James Potter isn't fond of Petunia Evans, nor is he fond of how she treats his Lily. Woken up early, and forced to go to her engagement breakfast, he intends to teach her a lesson. Marauder style. JL ONESHOT

The Potions Missile Crisis by ghostofbambi

Name: The Potions Missile Crisis
Author: ghostofbambi
Website: UR.org
Rating: PG-13
Link: here
Status: one shot
Description:
As if Slughorn wasn't bad enough already, now you'll never be able to see him again without spontaneously combusting from shame.

Note: this is a L/J one shot I happened across when I was looking at authors that I had read good story's by on UR.org.
ghostofbambi give a great description of James, and I must add I was almost drooling. Ans her Lily was well written as well. It's a great one shot, definitely give it a read.