If any of you are going to Uni in London this September or are already in London and you're looking for a flexible job where you choose when you work and want to just work in term time, there's a recruitment company called Berkeley Scott which do temp work in hospitality, They have really cool venues you get to work at like Wembley and Lords which is really fun to do.
I believe they are looking to get more students signed up now so may be one to look at if you don't want to get caught up in a shop or restaurant where you have to do minimum contract hours etc. so you can go visit home when you like. They just ask you to give them your availability and then that means they just set you up with jobs when you want to work!
...for the 2nd time this year