I really like “Money comes easily and frequently” I’m adopting that!
Some more thoughts - I tend to use the formula “In an easy and relaxed manner, in a healthy and positive way…” when I can feel that I am being too intense about wanting to manifest something. It seems to help to slow my thoughts down and allow the anxiety of wanting stuff too urgently to dissipate.
I would definitely agree, that “I am” is an extremely powerful formulation. It gets straight to the point, and centres you in the middle of the desire you are expressing. Personally, I do tend to use “I am …ing” (making, doing, experiencing) phrasing because again it puts me in the moment, right in present and allows me to feel that thing I am manifesting coming towards me.