I'm not clicking on that link but it is very easy to accept btc and as easy as having a tablet. You don't even need a tablet really. You could just have a qr code or something.

if ur local shop accept bitcoin
just send btc to buy with using address or the QR Code.

Depends on how you want to go about doing it. If were for me i would set up a counter with a large qr code displayed there and the customer can just scan to initiate payment. From here you can always leave open the screen showing your blockchain page and from there track individual transaction. That's the least of your problem though. There are other issues.

lets say you made the bitcoin address
12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX

you can easily go to https://blockchain.info/address/12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX
and see the qr code on your tablet, show it to customers and then watch that page autoupdate when a payment is received.

you can also right click and print out that QR code and maybe laminate that qr code piece of paper and stick it on your cash register as a manual method of displaying to customers so that you do not have to hand them a tablet PC, (always having the QR code on display basically)

and then from the tablet thats always facing you or from a smart phone you hold, you simply use it to watch for payments.

yes it is that easy to accept bitcoin. the hardpart is deciding do you keep it for retirement investment, or cash out

Maybe you can post on Services. Someone who is willing to hook your site and carry on bitcoin payments.

Yes, you should seek help from service providers like Bitpay. Way better and easier.
They'll take care of the risk (fluctuation) of btc price.