Think of it this way ... if the IRS asks you to prove your income & expenses could you ?
For the income simply give your clients a receipt for the services ... receipt books can be bought at any office supply store ... use the ones that have a duplicate form option so you have one for you & one for them... and keep the receipt book intact to prove you are not hiding income as missing pages are suspicious... if you make a mistake then void the page... do not rip it out.
And keep all store receipts for all expenses.
