Project Less: It turns out that it is possible to use supermarket self-checkout machines to buy nothing. I did so frequently during a two year period. Hundreds of the resulting receipts, recording the non-transactions, were collected. These were compiled into books (Less and More Less), an A0 print version was produced, I shared an 'how to' tutorial (produced for #LowTechLabLondon2016 at Saatchi Gallery) and created another 'simupoem' (Exchanging). The original sound recording of the interaction which inspired Exchanging is also shared here.