Suggestions for returntogrid
The following packages have something in common with the package returntogrid. The packages are ordered in decreasing similarity.
- grid: Grid typesetting in LaTeX
 - gridset: Grid, a.k.a. in-register, setting
 - writeongrid: Write on grid lines
 - spalign: Typeset matrices and arrays with spaces and semicolons as delimiters
 - pst-gr3d: Three dimensional grids with PSTricks
 - papiergurvan: Commands to work with Gurvan Paper
 - grid-system: Page organisation, modelled on CSS facilities
 - iso10303: Typesetting the STEP standards
 - iso: Generic ISO standards typesetting macros
 - colophon: Provides commands for producing a colophon
 - pointruler: 12″ Ruler containing Points and Inches
 - typoaid: Macros for font diagnostics
 - passopt: Passing options to packages or classes
 - isosigns: ISO signs and colors according to the standards 7001, 7010 and 3864
 - stricttex: Strictly balanced brackets and numbers in command names
 - iso209: A document style for ISO standards
 - was: A collection of small packages by Walter Schmidt
 - upgreek: Upright Greek letters
 - url: Verbatim with URL-sensitive line breaks
 - texments: Using the Pygments highlighter in LaTeX
 - nath: Natural mathematics notation
 - prosper: LaTeX class for high quality slides
 - subfloat: Sub-numbering for figures and tables
 - alnumsec: Alphanumeric section numbering
 - sudoku: Create sudoku grids
 - morehype: Hypertext tools for use with LaTeX
 - brclc: Support 16-bit (double) calculations in LaTeX
 - nicetext: Minimal markup for simple text (Wikipedia style) and documentation
 - handout: Create handout for auditors of a talk
 - balance: Balanced two-column mode
 - sciposter: Make posters of ISO A3 size and larger