Essence lipliner looks like clear/white is 25p
http://www.wilko.com/essence/essence-lipliner-13/invt/0410040

Essence Soo Blush! Cream To Powder Blush 20
http://www.wilko.com/essence/essence-soo-blush-cream-to-powder-blush-20/invt/0410092

Essence Soo Blush! Cream To Powder Blush 10
http://www.wilko.com/essence/essence-soo-blush-cream-to-powder-blush-10/invt/0410091

Essence Silky Touch Blush 70
http://www.wilko.com/essence/essence-silky-touch-blush-70/invt/0410046

essence stay all day12h long-last powd30
http://www.wilko.com/essence/essence-stay-all-day12h-long-last-powd30/invt/0400749

essence stay all day 12h long lasting powder 15
http://www.wilko.com/essence/essence-stay-all-day-12h-long-lasting-powder-15/invt/0410090

essence XXXL Shine Lipgloss 34
http://www.wilko.com/essence/essence-xxxl-shine-lipgloss-34/invt/0416056

essence glow in the night stickers 12
http://www.wilko.com/essence/essence-glow-in-the-night-stickers-12/invt/0410116

3 for 2 items include:
Nail polish 50p
Mascara 75p
Lipstick 75p
Eyeshadow 55p
Eye pencil 80p
Eye pallettes £1
Gel nail varnish 80p

also other items are included that are more expensive. If you are buying expensive items and cheaper ones might be worth splitting the order.
For example when purchasing 3 for 2 items
3 items at £1 plus 3 items at 50p = £3.50 after discount

3 items at £1= £2 after discount
3 items at 50p= £1 after discount
Total would be £3 for the same items a saving of 50p