When I go out I often filter my water through the Millbank bag and boil it. This is probably my main way of getting usable water. When I don't do this I use a Aquapure Traveller or the Military version Survivor S4i
(We have been extensively reviewing this since our first review and we do think it is better than we gave it credit, the review is being written at the moment)
I rarely use chemical purification as I just don't fancy using it when I have other choices.
When I have to drink water that does not taste too good (well, puddle etc) I use the US powdered drinks like Kool-Aid or tang, You can get them with the sugar included in the powder. This can make drinks much more palatable.
How do you guys and girls deal with your water needs?