I didn't think to start looking through my change until after I stopped working the register / tip jar, but I ended up with 2 silver dimes. We'd always cash the tip coins into bills at the end of the day too so I only ever had less than a dollar in change a shift, I can only imagine what I let slip through. Also the chances of finding anything in a roll of quarters from the bank are so low, it's not 'just find a couple good coins' its go through a box of rolls and find a couple maybe. There's lots of information dedicated to the hobby, but meh seems like a lot of work for no reward. No harm in checking your coins though, if you have a lot it wouldn't surprise me if you found a silver one or two. If the coin is in good condition its potentially worth more than the melt value. Just cool to have though.
Someone here or on zoklet said they've bartered silver coins to buy shit from convenience stores. Probably Asians and Indians would be willing to negotiate.