When I got my C-card I immediately realized that I didn't know what the heck I was doing. Also didn't have any close aquaintances to practice with. So I found a solo instructor on the internet with whom I hooked up with for a few days of instruction on the reefs around Ft. Lauderdale. Best money I have invested so far. She and I went out on some shallow reefs and I got familiar with the diving process. She charged me more than I would have paid a full-time shop since I was the only one who would be paying her. No problemo. Gave me a lot of confidence and I took off from there.