From April 11th through April 16th, 2017 Topaz Labs is making available their complete collection of artistic filters and photo enhancements at 40% off.
The entire collection includes 17 programs/plugins in total, some of them functioning also in standalone mode.

Here is the link:
TOPAZ COMPLETE COLLECTION

Use the following discount coupon to get the complete Topaz package at 40% discount
SPRING40

If you already own some of the Topaz plugins, use also the provided link.
Then you can sign on with your name and password, and you'll get a partial credit for the previously purchased single plugins. You will get also 40% discount for the remaining balance, so the complete package price will be even  lower.