Say you want to go to the gym, to keep fit etc.. but you can’t make it because your on a busy schedule on a daily basis 
. But you walk more during the week, instead of getting a lift home or whatever.
How much do you reckon it will make a difference, compared to going to the gym?
And.. on a more general note, what are the benefits of walking? 
Re: Walking.
Most of the people that were interviewed due to their longevity had one major thing in common. They walked a lot. There you have it!
fast walking is actually one of the best exercises out there. If done right and at the proper time then it can be a powerful tool. Unlike running your body will not burn muscle, you will however burn fat. Which is what we all want.
Walking first thing in the morning after getting up is very beneficial as that is the time when your body will burn the most fat. It also helps to keep your bone density up and helps you maintain muscle mass. So go for it. 45 mins+ of good walk time = one of the best forms of exercise out there.
Personally i think a good walk helps not just physically but also helps ease ones mind.
When i (run which i do often) it's ussually for my fighting skills, as a boxer i run to litterally pound my leg bones and stretch the muscles working myself into a frenzy.
I run over 10km in the morning and on saturdays i run an extra 5km in the afternoon. When conditioning i also tend to sprint and do crazy excerises like running uphill with a mouthfull of water to help breathe through my nose not mouth. I also run over gravel and woodland paths barefoot. Sometimes i even run with wieghts ussually strapped to my legs and wrists but sometimes heavier wieghts in baskets.
But all this merely helps condition me for fighting. It is only used to push myself to greater levels of endurance. Some might call it torture and boy do i agree! All this is pushing myself to control my body.
But even i take a gentle stroll too. When running i can only focuss on one goal, moving almost blindly and not thinking much about anything. But when you walk you can hear things better like birdsongs and water (i train near a lake) and you see people around you rather than pound past them like a raging elephant.
Walking also helps calm myself down and it means i can take a friend with me and talk normally i run in silence unless i'm shouting at someone to make way. When i walk i can move with grace and i feel like a better person, also i try and walk in quiter places its why i prefer the arrow valley lake..... If you ever come to Redditch in the UK it's a truly beatifull site with plenty to do and see.
minimal difference, if your keeping the same diet and walking a lil more.. you would lose prolly a pound in ten days. change of diet plan and drinking plenty of water makes significant difference.