Where to buy a nice work bag

[glitterysand]

Hi I need a new bag for work but haven't bought a bag in ages so don't k ow where to look. It needs to look stylish (not too formal) and fit in work diary, lunch, water bottle, other bits and pieces, phone, keys etc. It needs to be zippable and not too expensive.
Where would you shop?

Got a really good quality black leather bag at tk maxx for work. I needed one to fit my laptop, lunch etc and zip up same as you're looking for.

They seemed to have a good selection so it might be worth having a look at your local one.

Thanks @sadmonkey1 bought one in Sainsbury's and love it. I just looked on the website to add a link but doesn't appear to be on there.