If you're working on your own projects or freelance, all you need is a bit of shade. Depending where you are then using mosquito coils, once the sun goes down, is a good idea.

I was in Ubud, Bali earlier last for a few months and worked in my garden under an awning. ( photo here: http://goo.gl/p1HdNG ). The garden had a power socket. Nicest working location I've had! On the downside wifi could be a bit spotty and there were occasional power outages.