All the work on www.spuler.us is distributed for free. Updating and maintenance is provided in my own limited free time - sandwiched in between work and family - and can involve considerable work. Total time spent developing all the free content on www.spuler.us can be counted in the thousands of hours.
Your contributions allow me to continue development, provide support, and create new projects. While any contribution is greatly appreciated, contributions are not required to use my work.
One-time PayPal donations may be made with the form in the top-right.
Continued support can be made by installing an extension that adds a referral tag to Amazon links on all web sites. This option costs you nothing - Amazon pays referral fees generated from your purchases.