Toastmasters: Cost-Effective Training

Toastmasters is the most cost-effective course of study you will ever take. Your twice-yearly dues cover several meetings a month; you could easy attenda dozen 90 minutes sessions in six months, resulting in 18 hours of training at about $2.50 an hour.

Cost are low and effectiveness high because, although the instructional materials are professionally developed, the training and practice rely on the volunteer efforts of fellow Clubmembers.
Volunteering for roles such as Evaluator, Grammarian and Meeting Toastmaster is part of the training.

So: don't be like I was. I was too shy to sign up for roles until I had been in the club for a year. Jumping in and volunteering for roles is part of the self-improvement.