The problem with a lot of compacts is that their cases are solid, so you can't see what's inside without opening, and for the most part they are not customizable -- if you're anything like me you favor a shadow here with a shadow there, and if you're traveling you have to take a bunch of loose items to have your favorite colors on hand. I was tired of the clutter and thought there must be a more efficient way to manage all my products.
Viola! I discovered Zpalette. I was trying to think of some way to DIY something like this, and then I stumbled across a pin on Pinterest and I shouted (in my head) Eureka! I found the palette on Beauty.com, and with a coupon code got 20% off plus free shipping, and was so excited that I started getting my makeup ready before the item even arrived.
Zpalette is just an empty palette with a clear lid and a magnetic back, that you can fill with all your individual powders and creams, regardless of shape, size and brand. They come in different colors and patterns, if you want to be fun (I just got plain black.)
Another option they give you is to put you products on a was paper-lined cookie sheet on low heat (between 200-350 degrees) for a few minutes until the glue softens. This might also melt the plastic packaging a bit (that's why the wax paper liner) and probably isn't good for things like cream blushes or lip products.
Some products, despite being in a metal pan, are not magnetic to the palette, so the palette comes with little magnetic stickers you can attach to the back of those that won't stick . They have a sticker side you just peel off and stick on. I was being frugal and using one sticker for 2 eye shadows (above right.) Now I easily have my Mary Kay, Mac, Cover Girl and Sephora eye shadows, plus a couple cheek and face products, together in a quick grab, easy to see all case. I actually have even more products that I need to get another palette. Dear Santa....