Each personal reality is different.
The 97' strike was my wake up call to take personal action for my future/retirement.
Luckily, I was raised poor and I applied that experience to fortify me.
I set four simple goals.
Save some money every week.
Pay off my home.
Be debt free,
and most importantly,
enjoy this short life with the one's I love.
In 13 short years, I have met my goals.
Is it an easy path?
No
There is a saying in this part of Texas ;
"Poor boy's have poor boy ways."
Meaning,
I still cook my breakfast, pack a lunch and drink water that I put in a bottle from my well, everyday.
I cut my own hair, ect.....
Your question was, how much can one realistically salt away into their 401k?
No one can define that number for you.
I started out at3% and now put in 33%.
My total aggregate savings is 50%, of net income.
The only "wisdom" I can pass on about saving money is;
If you do not feel "the pinch", then you are not on a budget.
Best Regards,
and Best of Luck.
Steve