Boots is giving away a free 10ml bottle of Nails Inc polish, which usually costs over a tenner to buy, when you purchase two 500ml bottles of Diet Coke in-store (costing £2.36 in total) by the end of June, subject to stock.
There are four 'city-themed' colours to chose from: New York (fuchsia pink), London (nude), Milan (fiery red) and Paris (deep purple), but remember to take it to the counter with you.
Alternatively, if you're not a fizzy drinks fan but like mags, grab June's edition of InStyle magazine (£3.60 with Leona Lewis on the front) and on the cover you'll also find a free Nails Inc 10ml varnish.
The varnishes for this mag offer come in the following three shades:
Mink - grey/beige
Beach - coral
Candy - lilac