I only ever take one carry-on sized bag with me John, as I'm a bit of a 'minimalist' nowadays.
Extra T-shirts etc can be bought there as needed, as they're dirt cheap.
I forgot to take my electric shaver last time, but other than that, all I can say is travel light, keep passport and airticket easy to hand, but secure.
Have a ballpoint-pen on you to use for filling out your little immigration form they give you before landing in the Phils.
Not sure about what phone you have, but I took my one from home (for use on outward and inward journey to talk to my son), plus bought one of Tescos 'emergency phones' for 10 quid...which is already unlocked but no sim, then just bought a local Smart simcard when I got there (p40) and it had 40 free texts pre-loaded, which lasted me the entire holiday.
Oh, I also take a large lunchbox for my sandwiches and other snacks so I don't need to pay rip-off railway and airport prices for grub.
Also filled it for the homeward trip.
Have a big drink from your pop bottle before entering departure lounge because they'll take it off you....for security reasons.