Buffer Size

When recording I love to use 128 buffer size to reduce latency whereas I like to use 1024 when editing and mixing

Creating Fades Fast

One of the most useful things I've encountered when editing is to be able to create fades fast. Cmd + F allows you to create a preset fade. The default 10 millisecond fade is pretty useful.

Different Ways to use a Compressor

I feel that there are a number of ways to use a compressor. The most common way is to increase the level of parts that are too soft and reducing the overall loudness of a part that is too loud.

However there are some compressor that changes your overall tone and some people actually likes that, they may not wan to actually change the overall volume of that track. Usually you can increase the attack time on the compressor and reduce the ratio to achieve this.