First I would like a shoulder friendly bag. Second, I would like a bag for everything I do or need to eliminate switching constantly. I am a mom of two small kids so I need it to be a diaper bag/ gym bag/ everyday bag when my kids are not with me (like going to work). I've tried the gearslinger type (Lunada knockoff) but it gets around my neck and isn't big enough. I've tried the jumbo versipack type too, but it too seems heavy on the shoulder after awhile out and about and isn't big enough. Any ideas on what direction to go now? I have a North Face Borealis backpack which seems like it would cut it, but I am not sure I need it that big everyday when I leave home and I don't really want to look like a student. Need help.