Just a quick reminder that First and Second class postage stamps increase in price significantly (14p each) on Monday 30th April:
1st Class letter currently 46p becomes 60p (30% rise)
2nd Class letter currently 36p becomes 50p (40% rise)

Info here Prices 2012 | Royal Mail Ltd

Worth stocking up on a few First and Second stamps while you can as the ones marked as such are valid in perpetuity. There's not many ways these days you can guarantee an instant 40% return on your investment!