Drastically reducing supplements taken

I've been taking some supplements for a while now: women's multivitamin, calcium, omega-3 fish oil, vitamin D. There's no definitive evidence that omega-3 fish oil supplements or vitamin D supplements have any health benefits, so I'm eliminating them. Time to save some money and rid my nightstand of smelly useless pills!  I'm sure that I get enough vitamins and minerals from my food to stop taking the multi, but I'm not confident enough in the calcium distribution of my diet to stop with the calcium, though. Hmmm...