LaTeX can, by default, only cope with 18 outstanding floats; any more, and you get the error “too many unprocessed floats”. This package releases the limit; TeX itself imposes limits (which are independent of the help offered by e-TeX).

However, if your floats can’t be placed anywhere, extending the number of floats merely delays the arrival of the inevitable error message.

The authors are Don Hosek and Hans-Martin Münch.