The only thing I do every, single day, since over a year (though I lapsed for a month or two last summer) is Scales and Arpeggios, in that order, for about 15-20 mins each, around the circle of fifths in the mode of the day.
Then I go into something with lots of finger work, like the Appassionata 3rd movement, for awhile it was, now it's been the 3rd variation of the ABEGG variations. Those both generally favor the RH though. Sometimes I'll go from scales and arpeggios to 2-3 Chopin Etudes. Generally, whatever comes after scales and arpeggios tends to hold that place everyday for at least a month or so. I also really like to do my initial vocal warmups between scales and arpeggios, and then my secondary vocal warmups after arpeggios. Overall, that makes me feel pretty ready to go. Then I start in with both vocal and piano repertoire.