I have a lot more than you guys. The best ones I think is
three finger swipe up for closing windows and
down for opening tabs or new windows of terminal, finder, ...
CMD+W and CMD+N/T
Other very good ones are three finger tiptab right for next track. Very neat directly in between work when you have some music running in the background.
My four finger swipes one must understand as triggering TotalSpaces.
I also invert the MC and show Desktop gesture because it more naturally works with the three finger up/down. It is supposed to emulate pulling down a document from the back of your desk or throwing it out there.
Chrome the same as other browsers. Two finger tiptab is very neat for switching tabs left/right. Combined with the single tiptab it is very good when one wants to go three or four pages back quickly. Also the tiptabs work like the mouse in Opera.
I do use the swipes too but I wouldn't use those up down swipes for anything switching tabs. It is way better for closing and opening.
This is terminal but finder and many only got the CMD+N. Zoom as it is sometimes need when there is a lot of output but only for short periods of time.
I also added multimonitor short cuts that I can recommend to anyone that often works on two displays. I don't hold much love for the idiotic full screen mode but maximize by BTT is done the Snap way which is nice.
I am with Z17 that five finger gestures are bad. Disable some in trackpad prefs and make them your own. Five finger is for very rarely used stuff. I use only one for shutting of the display when some background stuff needs to finish and I want to save max battery life.
Basically my outline goes like this.
four finger gestures -> everything with Spaces/Expose/MC
three finger -> handling single windows back/forth new/close; two finger tiptap is technically also a three finger gesture. Middleclick is three finger tab obviously.
two fingers and less is like OSX uses it.
The rest is special sauce.