Another vote for MUA liquid lipsticks- really stay on, lovely colours, and only £3! (I do prefer the red shade from the Revolution range though)
All of the Bourjois foundations, but especially Healthy Mix, City Radiance, and 10 Hour Sleep (which I think is now sadly discontinued)
Seventeen Tattoo Me eyeliner stays on forever. As someone who loves a truly black liquid eyeliner I'd be lost without it. Their Miracle Matte pressed powder is pretty good too!
Collection's Speedy Blush and Highlighter sticks are lovely, as is the Lasting Perfection Concealer.
Body Shop's lip and cheek tint is cheaper and more pigmented than Benetint, although I've realised I prefer NYX's Red Cheeks as it blends easier (no chance of weird stripes on my face!)
NYX's Gotcha Covered concealer is better than any of the MAC ones i've tried.
Aaaaaaand finally, grapeseed oil is better than any of the weird C&P dupes out there. Sorted my acne, softened my acne scars and made my skin look lovely.