is TJ at tiong bahru (has it moved to Ginza?) the cheapest place for good slide development? they also take 1 day? open on saturdays/sundays? (any fone number?)
RGB is $4.80 right ... takes 3 hours, opens saturday until 4 pm, sunday closed.
Ruby is about $5? not sure how many days they take.
Konata is $6.50 i think, takes 3 days.