Right with you owas!
One of my first jobs was working in Boots one xmas, from September to Xmas Eve. I absolutely *loved* it. Same reasons as you, stress free, soon as you were done for the day that was it, forget work, no 'carry-over' of $hit/hassle from one day to the next.
I got moved around alot, in those 4 months I worked in Home & garden, Stationary, Photography, Records and ended up in Computer Department. Did have the odd rude customer that would upset your day but plenty of nice ones.
Really happy days, mind you that was 27 years ago!
Sadly well paid jobs=hassle
Poorly paid jobs=no hassle
Gary