Darcey said, "I want a pair of somewhat strappy, yet comfortable, sandals - with an ankle strap - in either black or tan, with a short heel 2-2½". Oh, and it's gotta be under $40. Preferably under $30."
These sandals below are Anissa by Clarks, but they are $84.
Here's the good news. I found a pair of Clarks very similar to these at TJ Maxx a few weeks ago for just $30. And they are extremely comfortable. Finding quality shoes on sale is the ideal situation, but here are a couple other finds for you just in case...
Some super inexpensive ones by Payless, Hoffman sandal, $23. Or how about these from CutesyGirl, just $17. A lot higher heel than you asked for, but they are an attractive low-cost option.