You have your keywords that tells which words searchers are looking for when they search for your web site and your product, however you may want some ideas to add flavor and improve conversion. I have composed some words that I wish will inspire you.
Internet users don't notice the alike things after they are constantly exposed to them again and again. In Internet selling banner blindness is the best known example. Internet users simply get used to banners that promote something that is not worth their time, therefore they stop seeing the banners after some time. The similar thing happens with vocabulary that are used to make us do something.
Therefore, you need to change your action vocabulary every so often to keep them working. The problem for most writers is that it is really tricky to change the vocabulary because of old habit.
I have made this list of actions vocabulary to help you change vocabulary every so often to keep making your writing copy effect full.
Here are a few examples on how you can vary simplicity and call to action words.

Indicating Simplicity:
easy to, ordinary, unequivocal, simple to, sticking to the facts, unambiguous, with both feet on the ground, without ornamentation, smooth, clear, definite, plain, explicit, plain and simple, indisputable, effortless, clear-cut, unproblematic, unadorned, without a hitch, normal, straightforward, usual, down to earth, undemanding, minimal, unsophisticated, unpretentious, unembellished, precise, unfussy, clean, minimum.

Call To Action: immediately, get it now!, don't wait, now is the time, now or never, order now, act now, limited supply, right now, decide now, buy now, this instant, don't miss.