Many of us forgo 2ndary unless we're adding fruit, dry hopping (many of us just dry hop in primary too) or making a beer that requires prolonged aging (months to years). Leaving your beer in primary for 2-4 weeks, and bottling straight from there, will actually let the yeast clean up some common off-flavors. It also reduces the risks of contamination and oxidation. 2ndary doesn't really have a lot to do with how clear your beer will be once it's bottled and conditioned.