Great chart Shane!!
For those new to oscillating tools, here are a few suggestions:
1. You WILL burn through blades! Yes, following best-practices and buying higher quality blades will help, but please remember these are not carbide-tipped, $100 blades. When purchased in quantity (25x packs are great!!), even the Festool blades are a reasonable $11-$14. If you think you'll use a blade for a task, make sure you are billing the customer for the full value of a new blade. The cost to the customer is significantly less than buying an oscillating tool, and it keeps your operating costs down.
2. Throw out dull blades. This might sound obvious, but I know many tradespeople who seem bent on warehousing old blades out of which they think they can squeeze one last cut. I keep one compromised blade around for cutting crummy materials, otherwise if I can't count on a blade to make a precise, clean cut it goes in the trash. Remember, these blades exist to speed us up and generate revenue.
3. Keep the blade moving. These blades generate heat VERY quickly, and if you focus on one part of the blade for any length of time you'll prematurely wear out those teeth.
4. Nails are different than screws. It has been my experience that these oscillating tool blades generally make pretty quick work of "soft" nails, but screws tend to be a different animal, and have a tendency to be more difficult to cut. Plan accordingly when you're purchasing blades for a job.
5. Use the right blade for the job. The chart that Shane posted above is one of the best I've seen.
6. Plan on hearing protection. Oscillating tools tend to produce a very high volume, high frequency sound, and to protect your hearing make sure you have suitable protection.
7. Let the blade do the work. Just like any other cutting tool, let the weight of the tool inform your feed rate.
8. Dust. Yup, dust extraction on these tools can be a bit tricky. Due to their very nature, a built-in dust boot would be nearly impossible. I've adopted a variety of techniques to control dust, depending on the application. For making cuts into drywall or plaster for electrical boxes, I've found the dust accessories for SDS Core bits to be really nice, otherwise I use a strategically place CT hose and do the best I can. Even with good dust extraction, plan on at least a small amount of stray dust and smoke.
