I believe

Another flip-flop day. Work early in the morning, a run late afternoon, the prompting not until now, just before bed.  And the only "i" word that garnered was "in," which marks a lame start. Let's see:

In

inveterate

indigent

indigo

impossible

impotent

if

ignorant

ignoble

insipid

insufficient

ion

internment

internet

interest

.... a flow, or a cop-out?

intravenous

interior

internal

isthmus

island

irate

Ireland

immaculate

inaccurate

ideal

idiomatic

idiot

illness

illiterate (and yes, I need to find somewhere to volunteer)

igloo

ingrained

ingrate

illegitimate (again with the forgetting how to spell!)

....only 33.  I'd though "I" would come more easily....

irradiate

ignoramus

icing (!)

ice cream

ice....

isolate

isotope

impish

imp

illicit

..43... writing at 10pm is difficult. Sleep is what I need.

inspiration

inspired (about time...)

illusion

ill-equipped

illegal

Icarus

icky

italics

italicize

Italy

Italian

Indian 

...cheating now, but past 50 so it's not so bad....

Iranian

immodest

immobile

...I believe that I am done. No writing on the new project today. Work took a heavier than average toll.