I throw away 98% of my oneliners, so I have never noticed this problem. Were this a concern, though, I'd have something like this in my .bashrc (may need minor fiddling before it actually works):

function ol {
    local NAME="$1"
    shift
    eval perl $(grep '^'"$1"'\>' ~/oneliners|cut '-d ' -f2-) "$@"
}
[download]

accompanied by a file oneliners in my home looking like this (assuming some snippets from jmcnamara's collection):

col1 -naleshift@F;print"@F"
rmcr -i -pes/\r//
2spc -pe$_.=$/
[download]

(Yes, the quotes are missing; this is due to the fact that the line is passed back out of the command substitution as a single string). And then I could just do something like

$ ol rmcr file1 file2 file

Makeshifts last the longest.