• ↑ cost nothing/not cost anything
• ↑ do nothing/not do anything
• ↑ for nothing
• ↑ for nothing/for free
• ↑ go to any lengths/stop at nothing
• ↑ it's nothing
• ↑ next to nothing
• ↑ not know anything/know nothing
• ↑ there's nothing to choose between
• ↑ think nothing of
• ↑ think nothing of it/it was nothing