Hi, My dad's AL facility called to recommend I get some non-slip bath rugs for him as he's been falling about every week.. and it always seems to be in the bathroom. Any recommendations for a good bathroom non-slip rug for outside of the shower and near the toilet? I've been on Amazon but as you know reviews are always up and down. The AL suggested something "grippy" on the top but I'm not sure that would help or hinder falls. Thanks!