Did you do any of the merchandising tasks? I'm with RWW, but I've done the MS tasks only, I've not had a go at merchandising yet. I'm not sure that it's quite my thing.
Yes, I was a little hesitant about doing them, to begin with as the pay is not great even for the little amount of time, but some of them are taking 10 minutes to do. Everyone I have done the staff are really helpful and they seem used to having people appear to do them. I tend to do them on the way home or in the evenings when I would just be sat on the sofa watching TV
.. I have one to do today which I stupidly left until today, and its a bit of a trek so wont really be worth doing but will do it.
Just need to do one and see, if they are close by or on your way to or back from somewhere I would say try them as they can be an extra little bit of income that you were not expecting.