Collecting the skulltulas are easy once you know where to find them: caves, night time, bean holes. It's really the poes that bothered me - they aren't hard, more annoying because of the patience involved. I've collected all of both, but I usually stop short on my 100% games because of the poes. I've done it a few times before and I don't really get satisfaction out of doing it again. I'll probably get that last bottle in OoT3D just for completionist sake.