anyone actually track roulette results to find patterns

I've always wondered if anyone here seriously tracks individual roulette spins, like writing down red/black, odd/even, and numbers over hours or even days. I've got a spreadsheet going myself, more out of habit than thinking I'll find the holy grail, but sometimes it looks like there are small streaks or repeats. I know it's supposed to be all random, but I keep thinking maybe the wheel's a little off, or maybe there's something human in how it's run.

Does anyone else do this consistently and feel like it actually helps, or is it just another thing to kill time between spins?