What can help your activity

I don't write that often on this blog. My intention was to offer some quality articles that can help you in your daily activity, no matter if you are a programmer, a web developer, a project manager or you have a lead position... The most successfull article is about Open-VPN on Windows Vista... Also the other technical articles are quite visited... So, now I ask you: what would help you in your daily activity? tech stuff, how-tos, advice, tips&tricks... I can cover a large scope of activities in many OS (win, linux, mac), programming languages, frameworks, project management and so on... Next action is to gather input, filter it and make a poll.