My busy tax offices could not do without these handy large rubber bands to hold each client's paperwork together as it goes through the preparation process.!
My wife's address book is full of papers etc which she needs to keep together. These would fall out and be scattered and possibly lost. she had rubber bands on it but they deteriated and broke. These rubber bands do the job well and will keep her together.
I use these elastics to hold together fat file folders stacks of large envelopes. Elastics are well-made and don't disintegrate over time. I am still using rubber bands that are 3 years old.