RTB 2.0 in-game downloader will fix this pretty much. So long as the person that makes it doesn't package it like an idiot. And if he does you just put down his rating, so you can pretty much tell what is ice cream and what might be worth downloading. Either with or without the idiot makers, it'll make less downloads needed, because every mod will only have 1 folder structure, so you wont have to download add-ons/shapes/green.png and add-ons/green.png.
Also, Ryan, I did your face request.