Q: Dear Sage,
Can my wizard craft more than one item in a day if the total cost to create the items is no more than 1,000 gp?
--Eclison
A: No. All items take at least one day to craft, so you can’t combine multiple cheap items into a single day’s work.
A small loophole to this rule is the scroll with multiple spells, which counts as a single item (see the D&D FAQ).