I mostly use the standard remote with KODI and therefore mapped some buttons i frequently use with the Keymap Editor addon.
http://kodi.wiki/view/Add-on:Keymap_Editor

My remapping:
0 = Stop - Since the remote has no stop button for audio/video and 0 is located opposite to >II
1 = Show info - Since this opens video info as well as addon info - convenient
|<<, >>| = Page Down, Page Up - It still works for skipping tracks/chapters, but now it also makes navigation much easier
(You can also use them to rate music during full screen playback!)
2 = Show playlist - Very useful for music playback/party mode
3 = Tab/Full screen - useful during video and audio playback
6 = forgot... will edit when i remember it

7 = Home - Since the "Home" button on the remote goes straight to the android desktop
8 = Remove item - I use it mostly during party mode playback to edit the playlist
I'm curious - are other users doing this and what buttons have they remapped?