Getting data abroad on EE pay as you go has always been a miserable experience, assuming you're too disorganised to sort it out in advance. You land somewhere foreign, you just need a few MB to get Google Maps up and find your hotel, and if their captive portal even manages to load, it's sorely lacking in a button which says "shut up and take my money". They also apply rather mean time limits - yes, you can have 75MB of data, but it only lasts 24 hours. WTF? I wanted that much for the whole trip.

For longer trips abroad, none of this matters as you can simply buy a local SIM at the airport. This is especially easy for me with my OnePlus Two, as it has twin SIM slots so you don't miss out on the odd text or urgent call from home.

However, for just four full days on the ground in Seville - much of it spent in an underground hotel conference centre with excellent WiFi - what to do?

Google Maps is really good these days at downloading the surrounding area while you're on WiFi, which almost solves the problem, but not quite.

However, I remembered that I have an AAISP SIM in my second slot. In addition to its clever SIP pass through, it can also do data roaming. The prices are high - 10p/MB - but it's pay as you go, billed in arrears by direct debit, and you can set hard limits at their end as well as on the phone itself.

This worked out really nicely, and I used 28.98MB over the four days. Which means I saved 11p vs paying EE their £3, and probably a lot more because I would have needed data over more than a 24 hour period. Well done AAISP.

Memo to self: must ditch EE for someone less annoying.