You can get a FREE Colgate ProClinical A1500 electric toothbrush (RRP £169.99, currently on offer at Boots for £84.99) simply by swapping any old rechargeable toothbrush at Waterloo station on Tues 9 - Fri 12 Jul and at Victoria station from Tues 23 - Fri 26 Jul (7am-7pm).The old brush has to be a rechargeable electric toothbrush, so battery operated brushes will not be accepted. Your old brushes will be recycled.The deal has been verified by MSE.Update 28 Jun: Colgate states that the dates and numbers for this offer have changed. The swap will start on Tue (not Mon) for both weeks and it's limited to 750 toothbrushes per day at each station.Expired as it has been a PR disaster: moneysavingexpert.com/new…ion