Polly,
I just made it my thing to grab the clipboard and walk the beds before I was ready to do any work. I had notes jotted down all over the edges that I would rewrite on a ''to do'' list or a ''great combonation'' list or ''flowers that are buried'' list. The lists went on and on, but I fixed a lot of problems almost immediatly, or years later, depending, LOL! For colors, sometimes I just go to a color wheel. I have many wonderful plant books I also like to look thru.
Sheryl,
I made a spreadsheet listing all the plants I moved and where I put them. Of course I wrote it down after each move so my paper was filthy, but it sure helps me remember all I've done.
Susan,
I've learned to make sure the tags are visible and try to get it into the picture. I also back off and get surrounding plants or other identifying thing or ornament in the picture too.