I need a vacumn cleaner. I have all hard floors..no carpets. But I have two dog kids and four cat kids..I have major hair issues!! I would like to know what vacumn you think would best fit my situation. Along with the hard floors and hair..we are trackers in from chores. I cannot lift stuff and those big upright ones that are kinda heavy would not work for me and my muscles. I could stand something that would also be able to clean up hair off the couches..but again..I just can't get too heavy of a one. I have been doing the dustmop and broom thing for six years..I hate just "moving" the dirt from one place to another..I would rather just suck it up and be done with it!! Any suggestions? Thanks.