Royal Mail price increases & thinking outside the box on packaging

As we probably all know by now, in just a few days Royal Mail's pricing for personal customers is changing. Pretty much everything you send now will be more expensive from April 30th. Not only are the price of 1st and 2nd class stamps increasing, but there are some changes to some pricing structures which are important to note. I'll be amending my previous two posts on posting internationally, but here are some of the important points for both domestic and international post and what (if anything) you need to do about them, with a particular focus on thinking creatively about packaging in order to reduce costs. All the new prices can be found here.