As a Christmas + Birthday gift I bought myself long-wanted Nexus 7.
The first thing I did was.. of course..
1) Unlocking Bootloader
3) Installing Custom ROM
I've tried couple of ROMs and found out Eclipse Nexus 7 is what I like most.
It has various customizing options but what I liked most is the power toggle option. It has built in power toggles with notification bar (slide down right side of notification bar to bring out) which makes it very convenient.