SSH into your website via a mobile phone
SSH can be tricky on a mobile device, but it’s also very powerful since you can achieve a lot using just a short command rather than booting up your machine to do much the same.
It can quickly save you from downtime if your alerted to your site being down due to apache crashing and requiring a restart.
JuiceSSH is my favourite app for android devices. It’s free but does have a Pro version for more advanced features such as storing Snippets for ease of access to more complex commands and synchronisation using CloudSync for multiple devices.