[kitchen08]

Thanks for everyone's help! I'm going to try the edge banding.

[splatgirl]

I used one of those wood stain markers anyplace there was a white gap that was noticeable which, out of all the cabinetry I have, was just a very few spots... Quick and easy.
A regular (from an art supply store for a wider selection of colors) would work too.

[tommymiller50]

Another option would be to put together a "blind corner" where you just butt two cabinets together.

I've got a couple of these in my kitchen due to weird angles and dimensions in my kitchen and my general dislike of the look of corner cabinets, but they are butting up against open shelving and a fridge (at an angle), so don't actually have experience doing two cabinets, but imagine it's doable if you are OK with having a bit of trim in the very corner to allow the doors to work.

Here's a post I just noticed on the subject

How to make a blind corner upper cabinet?

And here's a post from me on how to mount extra doors on a cabinet frame, enabling the blind corner...

Adding an extra door to wall cabinet

[RubrikGreen]

I've been contemplating an "L" shaped upper cab for my own remodel... This is how I've been thinking it:

One wide cab. One narrower (say: 36" + 24", or 30" + 18" ) You lose 12"+ depth on the large cabinet, or -gain- 12+" on the narrow one. ;^)
Do Not Use one -side- of narrow cab. Butt this open side up against wide cab, and use metal mending plates (or etc.) to join the top and bottoms of wide cab to open side of narrow cab.

Then use 2 doors. Probably could use the base-corner-cab. hinging if desired.

Shelves would need to be constructed in similar fashion, but would have 3 points for attachment: both sides of wide cab + remaining side of narrow cab.

[yankeelawyer]

I plan to have my upper cabs set at a 90 degree angle in one corner, but I will either do a blind cab configuration or will simply leave the corner itself as dead space.