yes, use up your baggage allowance with clothes and shoes instead of toiletries. price differences are not too significant. but i did stock up on the limited edition japanese pantene conditioners philippine groceries were selling the last time i went home.

no decent clothes worth buying here, aside from them being expensive. if you use a particular perfume/cologne there's a possibility that it might not be available here (i.e. bath & body works) but i personally find the ones available better & more affordable here.

some over the counter medicines back home cannot be easily bought in pharmacies here (you'll need to go to the doctor & stuff) so you might want to bring a few just in case. you can buy panadol anywhere here but i personally prefer biogesic so i make it a point to bring some every time i come back from my vacation.

have the best haircut you can get before flying out too :) you won't be having one like it while you're here.

welcome to qatar.