Answer: Azaleas do love oak leaves with good reason - they acidify the soil as they decompose. For that reason, I don't recommend using them in the vegetable garden, and only use them in the flower garden if the flowers you're growing are acid-loving. It's better to compost them, as the composting process tends to neutralize the pH of the materials used - and use the compost to enrich your garden soil. Oak leaves are tough and take time to break down, so it's best to first chop them up fine with a leaf shredder or your lawn mower.
If your dollar weed is the same as my dollar weed (creeping charlie, ground ivy - Glechoma hederacea), your best bet is to keep the soil well mulched between plants. I've had luck by placing a couple sheets of newspaper on the soil and topping it with aged hay or straw - it keeps everything down, though in some spots I have to pile on a fresh layer of straw. Hope this helps!
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