Suggestions for Customenvs

The following packages have something in common with the package Customenvs. The packages are ordered in decreasing similarity.

Package listliketab: Typeset lists as tables
Package mdwtools: Miscellaneous tools by Mark Wooding
Package asciilist: Environments AsciiList and AsciiDocList for prototyping nested lists in LaTeX
Package enumsub: Aligned inline sublists for enumitem
Package revnum: Reverse enumerate
Package outline: List environment for making outlines
Package desclist: Extended description lists
Package shortlst: Compact lists by running several items per line
Package hlist: Horizontal and columned lists
Package gatherenum: A crossover of align* and enumerate
Package labels4easylist: Add reference labels to easylist items
Package sitem: Save the optional argument of \item
Package iitem: Multiple level of lists in one list-like environment
Package lazylist: Lists in TeX’s mouth
Package cals: Multipage tables with wide range of features
Package nox: Adaptable tables
Package topiclongtable: Extend longtable with cells that merge hierarchically
Package multicoltab: Free flow table for multicols layouts
Package enumext: Enumerate exercise sheets
Package multenum: Multi-column enumerated lists
Package etaremune: Reverse-counting enumerate environment
Package eqlist: Description lists with equal indentation
Package engrec: Enumerate with lower- or uppercase Greek letters
Package tasks: Horizontally columned lists
Package paralist: Enumerate and itemize within paragraphs
Package sltables: Simplified tables for LaTeX
Package slashbox: Both column and row headings in a tabular cell
Package tabular2: Table typesetting with expl3 syntax
Package tabularew: A variation on the tabular environment
Package tabularborder: Remove excess space at left and right of tabular
Package vtable: Vertical alignement of table cells