As an investor, I have an extensive desire (read: obsession) for control and states of overview both on a very macro level in terms of my portfolio, and also in terms of micro-managing individual company and having quick access to relevant data.
Some of this is easily solved by access to free and paid-for tools which will easily give you data on NA, European, and non-European/NA companies. However, I still maintain my very, self-programmed excel portfolio overview that tracks dividends, payouts, cost basis, yields, forecasts, valuations, average dividend payouts for month X, and a multitude