In my next life, I will be a man. Not so much because of penis envy but rather because of ease-of-life envy:

Men do not suffer from irrational melancholy grumps a week before their non-existant period.
Men do not have to shave/wax/alternative excruiciatingly painful method their legs/armpits/bikini lines.
Men do not have to worry about bad hair days. Being bald isn't so taboo when you're male.
Men don't have to wear two sports bras to go for a simple jog.

Rant over. Not that any of the above applies today but it's a continual question of maintenance. And it conflicts with my laid back nature.

Additionally, men don't have to worry about having to work twice as hard to rove themselves in male dominated environments. The number of times I've gone on site only to have some thickheaded foreman practically pat me on the head and say 'there there, don't break a nail' or somesuch. Anyway.. not that I'd ever consider stepping out looking like a gorilla and cammomile tea does wonders for monthly grumps.
Maybe I'll just stick to being a girl, there's something satisfying about fighting against the odds.