Normally I try to keep my gear to the minimum when I travel. This leads to my smartphone being a great tool that can do tons of things. But after a recent trip to Vermont I found my cell coverage was horrible and ended up using a very old dedicated GPS device for directions. Surprisingly it worked well (though I bet roads in rural VT haven't changed in years). So while I hate taking extra things when I travel, I almost wonder if getting a new GPS might not be a bad idea.
Anyone have thoughts on what devices should be included in a packing list even if you have a smartphone or other device that can perform that same function?