There’s nothing quite like experience to really hone and sharpen your Excel modelling skills. Every hour that you spend nutting through a problem on the job means that the next time you come across a similar problem, you’ll solve it in a matter of minutes, not hours. This is especially true for creating complicated Excel formulas, or for model design and layout. So often I come across a problem when building a modelling solution for a client and I know I’ve seen this problem before. Whilst it might have taken me half an hour to model it out the first time, often using trial and error but the next time it’ll only take a few minutes. The more experience you’ve got, the quicker and better modeller you’ll be.