Found an interesting website which explains how to stack your shopping when buying 3 for 2 at boots, argos etc. Worth a read as last year I never thought things through. Went straight into Boots, filled my basket with 12 gifts and 4 of them where £6 lynx sets and and a few of then where expensive number 07 ones and I ended up only getting the lynx free 
Oh yea don't forget to use your boots card for points too, I received loads of double your points vouchers and £10 free vouchers with a £60 spend so I intend to stack my basket as the article suggests, on the highest spend receive my £10 of points and my next basket will use double my points.
That should mean I have enough points for a few stocking fillers on 3 for 2 aswell :)
www.hotdealspy.com/article/argos-3-for-2-toys-2015