  CMB anisotropy experiments seeking to make maps with more pixels than the
6144 pixels used by the COBE DMR need to address the practical issues of the
computer time and storage required to make maps. A simple, repetitive scan
pattern reduces these requirements but leaves the experiment vulnerable to
systematic errors and striping in the maps. In this paper I give a time-ordered
method for map-making with one-horned experiments that has reasonable memory
and CPU needs but can handle complex COBE-like scans paths and 1/f noise.
