Just like it says, this is the psd file for my basic tees and baseball shirts. I've included the alpha layer for the basic tee, but I didn't include the baseball shirt's. Not because I'm feeling evil, but because I forgot about it and then just didn't really feel like putting forth the effort of extracting it and putting it on there. Sorry. Both textures can be used on both adult and teen male sims as they're mapped exactly the same, which is great because it caters to my laziness.
You can use these as a base for whatever you want. All I ask for in return is some credit and maybe the occasional sacrifice.
Click for super-size.
DOWNLOADrobokitty, you may want to redownload this file since I turned around and did some more editing to the texture after I sent you the link earlier.
And question--have you fiddled around any with the men's shorts & pants textures in TS3? I hate all their shiny crotch folds and have been thinking abstractly about making some default replacement textures of them, but I wanted to check to see if you're already working on/planning anything like that for your basics.