I need velcro cable ties - which B&M is most likely to carry them?

[AlphaDog]

I've never looked for these before, so I don't know if I'm more likely to find them at a place like Office Depot or at Lowe's or Target. (That's as far as I'm willing to roam for something like this!) I don't want to use them for cables, so I need some that are as wide and long as possible. Thanks!