Bit of an unusual post here; rather than commenting on products I'd recommend I'm going to list items I despised. I figure if even a single person saves some cash than at least me having spent mine on worthless products hasn't been completely in vain.
1. Milani eye tech liquid liner - hate this because it dried up so quickly (I got maybe 10 uses out of this), which is a shame because the first few times I used this the colour was opaque and ideal for me.
I talked about why I disliked this product so much here.
4. Benefit Tinted Moisturiser Lite - this wasn't for me. It made my sensitive skin feel like it was burning every time I wore it. I also appreciate this is meant to be very light but it had very little coverage whatsoever. I'd have preferred to use a powder rather than this. The colour was also very yellow.
6. MAC Surf the Ocean pigments - it's odd that I did a review on these when they came out and didn't dislike them so much at first. What I'm unhappy with now is how difficult these are to use - they have such a gritty fly-away texture and leave crazy fallout even after using a sticky base (I've tried Too Faced Glitter Insurance and Fyrinnae's Pixie Epoxy). They also cost me (IMO) a fortune and since I've only worn them once they're a complete waste to me now.