Label transparent glass storage jars by letter-etching the labels. It just looks so neat and clean, doesn't it?
Tutorial, photo, and idea found here.
As for the storage jars, I have these from Ikea. I love them because they're inexpensive and durable (according to all the times I've dropped them and they haven't shattered... and the lids have clung on amid the impact). The lids are also attached, which makes cooking somehow more orderly. You don't waste time trying to re-match and locate lids during the post-mixing clean-up. Plus, they just look good.
Now, are you ready for the simplest idea ever?
Store plastic grocery bags in empty paper towel and wrapping paper tubes.
This has been a major space-saver for our pantry. Plus, it gives those empty rolls another purpose before they're recycled. It's like thrice recycling.
Idea via Cooks Illustrated (i.e. the-best-magazine-ever)