One of the most flexible types of pension, a SIPP lets you select and manage the investments in your pension pot yourself. ... (Although you will need to pay income tax on money you take out of your SIPP at the other end.) And thanks to investment platforms, you can open a SIPP easily online.I have seen people get paid like salary and still have nothing to do with the money, Because they don't have any plan of investing the money or going into a business, and at the end of it all they don't have any achievements. What advice do you have for people collecting pension every month.