I like creeky's suggestion in the second post in the thread.

It's a horribly expensive way of getting your data, but "piggy-backing" on an open wi-fi network might just render you more vulnerable. (Happy meomories of the sister-in-law saying, "Oh, how convenient - (nephew's name) has just shown me that all the Windows computers using this router are visible to each other, and we can simply share files" - and unlike me, she actually has programming skills.)

1GB is very little in this day and age but, if you just stick to what you're proposing and resist trying to stream movies and things, might prove a safe and relatively cost-effective option.

'Tis what I do on my hols, but I don't do anything "sensitive."