I bought them for DS1 on a recommendation and thought they were pretty good. They didn't come off in the dishwasher / laundry, decent size. Then...
3 years later, same bottles for DS2, I was able to peel off the labels in seconds with no messy residue left behind. After being washed a gazillion times in DS1's first year of life and sitting around for 2 more years they never came off. But when I wanted them too, it was easy peasy.
I bought a Groupon for Label Daddy labels 25 for 50 and labeled all her clothiers with them. They've been washed many quite a few times and have held up like new. If you google Label Daddy Groupon it looks like you can still buy it!
Re: Labels for daycare
Mabels labels. www.mabelslabels.com/
I bought them for DS1 on a recommendation and thought they were pretty good. They didn't come off in the dishwasher / laundry, decent size. Then...
3 years later, same bottles for DS2, I was able to peel off the labels in seconds with no messy residue left behind. After being washed a gazillion times in DS1's first year of life and sitting around for 2 more years they never came off. But when I wanted them too, it was easy peasy.
Now I think they're the best things ever.
Big Kid Jan 2010
Littlest Man Sept 2012
Mabel's Labels is another really popular one.