Not having any kind of index page has been an issue from day 1.
You may wish to take a look at Kure by @krnel - I know it's supposed to be to help curate others but it might also be useful in "curating yourself", in the sense of creating an index.

The cheapest, and most obvious, solution is to create a free blog index page you can update without changing the URL.

One other idea is to add an index below each post. This may end up being very long, but could be creative with the title-text. I know... it's all extra work! (My own schedules tend to evaporate after a while.)