I never switch off my MBP , open the lid, do work, close the lid.
I only reboot when Apple Software Update asks me to...... easy.
Cheers .... McBie
Not that I own a MB, but a great believer in closing down daily as booting is important in maintaining a good OS. The heat thing is a real worry with MB's and not worth the risk one imagines! Have a read of this for more views:-
Is it better to sleep or shut down your Mac? - Interrupt19
I never switch off my MBP , open the lid, do work, close the lid.
I only reboot when Apple Software Update asks me to...... easy.
Cheers .... McBie
I run OnyX weekly, and other than the restart at the end of the maintenance, software updates is the only other reason I restart.
Have had 28months so far of no problems with this MB under these conditions.