My rpi stays on for long periods, and my SD card is somewhat old and not super high quality. I back it up and all, but either way I'd rather it didn't fail any time soon.
So, I've been on a campaign to minimize I/O activity to the SD card. Nothing insane, mind you- I'm not going to mount my home folder in a temporary directory to prevent writes to ~/.history (although maybe I should turn off history!) I've been focusing on things like doing work in /tmp (which I mount as tmpfs) and turning logging way down. I've left /var alone for now, because aside from the logs I believe most activity there is at boot or shutdown.
Has anyone gone on a similar crusade? Does anyone have any suggestions of good things to target?