Next year is expected to see an unprecedented rush into so-called DIY investing. Below we explain why you may feel the compulsion to manage your long-term savings more directly, by shifting them to a low-cost investment shop that allows you to pick your own funds. But before you take the plunge, it’s essential that you digest this chart – it could save you as much as £14,000 over 20 years. In short, the graph shows how the costs applied by the investment shop, which may be modest at the start, rapidly build up over decades. Related Articles My trick to finding funds you can buy and forget 20 Nov 2014 DIY investment vs leaving it to the 'pros' 15 Nov 2014 My top 10 tips for DIY investors 17 Feb 2014 Invest £100,000 in shares and take an annual income. How long till you're bust? 10 Nov 2014 This is how it works. You hand £10,000 to an investment shop and tell it you want to buy a certain fund. That fund will have a cha...