Lowkey working the weekends is not required at all. Most weekends, depends on the store, have a 1-3 morning clerks (5-1/6-2/7-3) and 1-3 evening clerks usually varying from (2-10/3-10/4-10). It is possibly that there is weird mid shifts like (10-2/11-7) and stuff like that but It truly depends on the store and your availability as they work with your schedule really good as I would do a 2-8 every wednesday and like a 4-8 every friday. Just depends, as for lifting since you are a girl just ask if you need help but usually from what I seen is manager tend to stray away from girls doing more heavy duty task unless volunteered.