I used to work seasonal every year (until I had kids) and hope to go back to it this year. I really loved it. My only issue was, because I worked at the mall, sometimes my hours were significantly different than what I had specified that I can do...and I was working a full time job otherwise so it was not an optional thing. That always seemed to need to be rectified with them. Also, again because it was at the mall, I would end up working 5 - midnight...then had to get up early the next day because I had to be at my regular job by 7am. The timing was my only issue!
Loved the extra paycheck and the discount!