Caffeine - Keep your Mac from going to sleep

Ditto @brackin. One of my first installs on any new Mac I use.

I've been using it for a while and it's been quite useful.

My #1 favorite app. I've been using this at least 5 years.

New to me! Love it.

I use it every day - never had an issue with it. There's a great submenu (right-click on the menu bar on the caffeine icon / cup) to choose the periods that you want your laptop to stay awake for - also you can choose indefinitely from there too.

I really needed this! :)

It stopped working for me, not sure why, so I switched to Owly which works like a charm.

The kind of perfect little app I couldn't live without.

I love this. I wonder how they will compare against Amphetamine.

Pros:

So easy to use

Cons:

Icon is non-retina

I use this one regularly.. It's an excellent app