How do you judge if you're on track for retirement savings? Do you have some sort of magic number that you aim for (e.g. I think I need $XXX to retire), do you use a calculator on an investment site/provided by your bank? Do you work with a financial planner? Do you just max out your 401K contributions/have an IRA/stock/property/mattress full of cash and figure you'll be set?
I was looking into this a bit today and couldn't seem to find a consensus on how to set a good goal/target. I've been doing 401K contributions and increase the contribution whenever I get a raise or promotion until it's at max (and I have it in a higher risk mix of funds which do well overall - i'm only 33, so i can take more risk), and I have some stocks - but the calculator on my investment site is anticipating my needs to be significantly more than what I am looking to have. So I looked at a few more calculators, and have seen every response from "you're on track/ahead of the game" to "you'll be lucky to have a cardboard box to live in."
This also doesn't factor in my pension (provided I stay with current company, it's pretty good) or Social Security (assuming it still exists).
I figure that by the time I'm 60+ some costs may increase (healthcare, general COL due to inflation), but others should decrease (no mortgage, not supporting a kid) - so this will probably offset.
ETA: when I say "I" I'm also factoring DK, his income, age, and current retirement funds too. I also can't figure out how well the models work with 1 or 2 people.