Try baking soda and vinegar!! Seriously! I read about it online last night, and our shower drain was draining sooooo slow....and I was going to go out and buy Drano today, but instead last night we tried this first! All we did was put about 1/2 cup of baking soda just right down the drain, and then we poured the vinegar down. Then you put the plug in the drain really fast and let it sit for 30 minutes. Then we boiled a tea kettle full of hot water and after the 30 minutes poured that down the drain, and bam! That did the trick! So don't waste your$6-$7 on Drano everytime (or $12-$14 because we always have to do it twice) try this first!