Track Labeling
I'd love to be able to name my tracks, such as A1-VO, A2-SOT, V1-ONCAM, V2-B-Roll, etc.
I know you can label them in the mixer but that doesn't transfer to the timeline/sequence, where I often forget what is on what track.
This request might go hand in hand with those who have asked for track color that overrides clip color as well.

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Andreas Toth commented
There's plenty of space on the header of each track to allow labels to be displayed following the icons. One shouldn't have to expand their heights to show this.
Also, as well as displaying user-configurable labels, one should be able to colour-code the backgrounds of each track including the headers.
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Jarle Leirpoll commented
The track name will show in the timeline if the the tracks are tall enough to show the line the name is placed on in the Track Header. If you want the name to show when the tracks are tiny, move the name to the first line in the track header.