Both wrong, the only way to enjoy an explore is to bring exclusively one 35mm slr with unknown battery life (if applicable). Take loads of shit shots cos your nervous on really expensive but ultimately well expired slide film, to be developed haphazardly by some 16 year old in a boutique lab for twice the original cost of the film. Upon receipt of the prints/slides/scans, best practice is to promptly lose them, to rematerialise either 2 years after demolition/exploring season, or never.
Been having a look at this recently and really love the look it produces, especially for city/night shots. Tempted to give it a try but at around £15 a roll for 35mm (before processing) it's a pricey roll of film!
Seems to be quite popular in the states but have seen very little of anyone shooting any over here so would be interested to hear anyone's veridict on it who does!