For chips, popcorn is doing the trick for me. I love chips.. they are like one of my binge foods, ha. I get the kernels and either pop them in a paper bag in the microwave or you can get an air popper for like $20 bucks, which more than pays for itself since popcorn kernels are pretty cheap... even if you get the organic kinds.
I also use Kernel Seasons popcorn seasoning (and a few spritz of PAM to get the stuff to stick)... seriously the best stuff...dieter's dream.. they have alot of flavors to try out, even sour cream & onion, BBQ, pizza, bacon cheddar, ranch, white cheddar... even chocolate... ok so you can almost never get bored of popcorn.
For sweetness, I also do the banana ice cream. Or even a slightly frozen protein shake. I also discovered LorAnn candy oils... they really aren't oils though, they are like flavoring extracts and come in a bunch of flavors and just a few drops are needed to flavor a protein shake or banana icecream.. I find they are much better and not as fake/too sweet tasting as Torani or Da Vinci syrup.
For chocolate I get the dark chocolate bars and melt a couple of squares in the microwave and then put in some strawberries, or raspberries... Yes, I got that tip from Valerie Waters if anyone recognizes it, haha. Or I just have a protein bar.
All this probably sounds unclean and still alot of processed foods. They are lower calorie options though. I'm finding for me if the rest of my diet is clean, then it's ok to have those fake food stuffs... and it's still a bit healthier than reaching for the pure junk food.