I would have thought it was quite easy to aim for the currys/pc world /staples (normally very willing to hire as they gave me a job ) /toys 'r' us crowd over xmas. Get your application or name down for them now though as they will go very quick.
Whether they will want warehouse workers or shop floor though I don't know. The thing to remember though is as long as you aren't on the till in these sorts of jobs your public contact is generally limited to them asking you where something is, which all you need do is
A) remember where the things are
B) Say follow me, or if you are lazy.. point lol
this could actually be a nice way to improve your confidence. Because any serious issues, you just send them off to the supervisors and mostly people will be grateful for your help and there is at least some satisfaction to be had from being thanked.
The best thing about these sorts of jobs is the challenge of finding the perfect way to do nothing for 8 hours. You can pass the hours so easily in this way
Factory work which I have racked up a total of a whopping 2 days of is awful. It will be boiling in the summer, freezing in the winter no doubt, the people are generally not very friendly from what I saw and the work is completely mindless and there is no way out of it.