Say you have a new business and want to invest your personal income into the business to start. Say you initially just invest $25 to satisfy the bank's requirement for a new account, and say you invest $100 here and $1000 there occasionally. I am wondering how to properly document this so as to still keep the business and personal accounts "separate".
Doing a quick search brings up things like this, but it doesn't quite describe how to effectively document this without external software. In this question/answer, no external software should be used. Instead, just a document with plain text (using any plain text editor or MSWord or whatnot). I would also like to know how a software could document this if it's straightforward. Basically, what sort of record(s) should be created in addition to the original bank transaction record, so as to keep the liability and bank accounts separate.
Finally, I would like to know how to properly document "donating" or "supplying" initial capital in the form of equipment like books, computers, pens, pencils, etc., to the business.