Other than the taxes going up less than was previously mandated by law, the spending cuts (sequestration) part of the fiscal cliff have been put off for two months, or until the end of February (and may be extended further by an act of Congress). If you make above 250K the fiscal cliff has increased your taxes pretty significantly. Under 200K the only major tax change was the end of the 2 percent payroll tax holiday and a return to the 6.3 percent tax rate for FICA (social security and medicare/medicaid taxes).
If the the spending cuts (sequestration) happen at the end of February 2013, then:
In some direct or indirect way yes you will be affected, depending upon your life circumstances and line of work. If you work in the military or defense industries, then the automatic cuts may affect you, as job losses are likely. If you are obtaining employment via federal funding in some way (the federal government funds a wide variety of things from social programs, to infrastructure spending, to basic research and development), then the automatic cuts may affect you, as job losses are likely. While Americans love to bash federal spending, indirectly they may feel the affects of the fiscal cliff in reduced government spending on things such as transportation infrastructure to health research to environmental protection and cleanup. You may not feel these cuts directly unelss you live next to a Superfund toxic waste site that doesn't get cleaned up or a transportation project like a highway expansion in your area is delayed or cancelled.
I am not criticizing these cuts, as we need to live within our means, but they will affect average Americans one way or another.