Hi again. I realize that it’s important to bring some type of water bottle along (especially when the weather is hot and you’re doing a lot of walking), but what kind would you recommend: a sturdy one (like a Nalgene bottle) or a disposable plastic water bottle sold in grocery stores? I was thinking about just using a cheapie Evian-type that I can get at the market and then refilling it… but is the tap water in Spain and Portugal usually suitable for drinking? I’m sorry if this is a dumb question, but I’ve heard a number of conflicting opinions on this and would appreciate the help! Thanks!