Looking for bag recommendations. I hope this is okay.

I just completed a 30 day challenge and it was the first time I've really attempted to carry my camera with me everywhere. It was fun, but difficult to not feel like I was lugging around equipment. I'm in search of both:
A) a camera bag that will fit my D750, 3 lenses, eventually a flash, and my 15" Macbook and any other equipment I acquire (a strap to attach my tripod would be nice) and preferable under or just around $100 (considering this one - or any other suggestions)

B) a purse I can carry a spare lens in along with my wallet and and phone and such, not too large or heavy, but large enough to slip my D750 into when I am not taking pictures (such as if I sit down to eat and don't want to have my camera sitting on the table)