Reddit reviews Dome 750 Mileage Log/Expense Record, 3.5 x 6.5 Inches, Logs 324 Trips (DOM750)

Accounting student here, so my views of the IRS may seem controversial to some with a passive knowledge.

In short, stop worrying about the big bad IRS.

They are not going to go over your return with a fine-tooth comb.
They do not care about chasing you down for your measly small business deductions.

If you have all your ducks in the row (kept receipts for business purchases, inventory, mileage for gas, etc.) you'll be absolutely fine. If you didn't, you'll also be fine. Comb over your credit card records and provide your best guesstimate.

People absolutely stress over taxes way too much.
For everyone who didn't click any of the links, the IRS is SEVERELY understaffed and underfunded. They've recently switched their goal from Compliance ("Everyone has to pay") to Revenue (For ever hour an auditor spends looking over a return, they should produce $X amount in revenue for the IRS)

There's a little more to this and someone else could chime in, but I'm ending my rant here. If you guys kept decent records (and even if you didn't) you'll be fine.

edit: I'm not advocating you make up shit. You should absolutely take advantage of any deductions you can for your business though (home office, gas, business purchases, etc.) One of your goals for 2017 should be to keep better records. Log your miles with MileIQ or get one of these.

See a CPA if you're afraid of fucking up, but honestly unless you're making high six figs, you could use turbotax home and business and you'd be fine.

2nd EDIT:

Some people are asking about specific "records" and what not. I'll throw in a few resources below.

Read up on Section 179 Deductions. If some of them apply to you, take them.

Did you rent a vehicle to move furniture or pick up auction winnings? Deduct it.
Bought some accounting software or Turbotax?
Purchased a subscription to FBA Scan or Profit Bandit?
Bubble wrap, tape, boxes, etc. All your shipping supplies.
Did you purchase in cash or lease a vehicle that you use for business? That's right, you can deduct that purchase cost or those lease payments. You can't, however, deduct loan payments (i.e. you have to use YOUR money).

You get the picture, people. It isn't as hard as it seems.
Admittedly I'm a bit of a DIY so I'd just get Turbotax Home and Biz and do it myself, but you can hit up a CPA if you'd rather avoid the hassle. Also, I recommend reading the entire Section 179.

Moreover, Amazon has a planner for pretty cheap. This is what I use:

https://www.amazon.com/Mileage-Expense-Record-Inches-DOM750/dp/B00006IC8V