I'm not a huge DIY'er at all, but there is something cathartic and spiritual about waxing my own boards. If you ride seriously, waxing will become second nature. Serious repair I certainly do not bother with, hell I don't even fuck with my rails other than detuning, but waxing is easy, fun, and not worth paying someone else to do.
Some people even wax their boards in their living room on plastic or newspaper.
You can get a whole setup for 30 waxes for less than a $30 tuneup:
$10-15 Walmart Iron
$0-10 plexiglass scraper. If you're resourceful, you can find a nice scraper from a random piece of plastic if its straight/stiff/right size.
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