https://www.opsliy.com/blog/ Document tools that run entirely in your browser. Nothing you type is sent to a server. en Thu, 20 Aug 2026 00:00:00 GMT https://www.opsliy.com/eleven-documents-small-business/ https://www.opsliy.com/eleven-documents-small-business/ Thu, 20 Aug 2026 00:00:00 GMT A short tour of the paperwork that actually comes up, and which document belongs at which moment. https://www.opsliy.com/qr-code-on-an-invoice/ https://www.opsliy.com/qr-code-on-an-invoice/ Tue, 18 Aug 2026 00:00:00 GMT A payment link your customer can scan instead of typing an account number. https://www.opsliy.com/invoice-on-your-phone/ https://www.opsliy.com/invoice-on-your-phone/ Sat, 15 Aug 2026 00:00:00 GMT Billing from the job, before you forget, without installing anything. https://www.opsliy.com/invoicing-in-another-currency/ https://www.opsliy.com/invoicing-in-another-currency/ Wed, 12 Aug 2026 00:00:00 GMT Which currency to bill in, who absorbs the bank charges, and the fields that stop a payment going astray. https://www.opsliy.com/printable-invoices/ https://www.opsliy.com/printable-invoices/ Sat, 08 Aug 2026 00:00:00 GMT For the jobs where a laptop is not coming out of the van, and paper still wins. https://www.opsliy.com/invoicing-for-tradespeople/ https://www.opsliy.com/invoicing-for-tradespeople/ Thu, 06 Aug 2026 00:00:00 GMT Parts and labour on separate lines, callout fees that do not surprise anyone, and billing before you leave the job. https://www.opsliy.com/invoicing-for-photographers/ https://www.opsliy.com/invoicing-for-photographers/ Wed, 05 Aug 2026 00:00:00 GMT Day rates, usage licences, expenses and the deposit that protects a booked date. https://www.opsliy.com/retainers-and-ongoing-work/ https://www.opsliy.com/retainers-and-ongoing-work/ Tue, 04 Aug 2026 00:00:00 GMT The same amount every month is the easiest thing to bill and the easiest thing to forget. https://www.opsliy.com/invoicing-for-cleaning-businesses/ https://www.opsliy.com/invoicing-for-cleaning-businesses/ Mon, 03 Aug 2026 00:00:00 GMT Regular visits, one-off deep cleans and materials, billed so nobody has to work out what they are paying for. https://www.opsliy.com/invoicing-for-a-side-business/ https://www.opsliy.com/invoicing-for-a-side-business/ Sat, 01 Aug 2026 00:00:00 GMT You have a job, you have a few customers, and you need paperwork that takes minutes rather than an evening. https://www.opsliy.com/paperwork-on-day-one/ https://www.opsliy.com/paperwork-on-day-one/ Thu, 30 Jul 2026 00:00:00 GMT Thirty minutes now saves the scramble in month three, when a customer asks for something you never set up. https://www.opsliy.com/deposits-and-staged-payments/ https://www.opsliy.com/deposits-and-staged-payments/ Tue, 28 Jul 2026 00:00:00 GMT How to ask for money up front without it feeling like distrust, and how to document it so nothing gets lost. https://www.opsliy.com/payment-terms-explained/ https://www.opsliy.com/payment-terms-explained/ Sat, 25 Jul 2026 00:00:00 GMT What Net 30 actually means, which terms to offer, and why a date beats a period every time. https://www.opsliy.com/when-an-invoice-is-disputed/ https://www.opsliy.com/when-an-invoice-is-disputed/ Wed, 22 Jul 2026 00:00:00 GMT A customer says the bill is wrong. Here is how to work out whether it is, and how to fix it on paper either way. https://www.opsliy.com/turning-a-quote-into-an-invoice/ https://www.opsliy.com/turning-a-quote-into-an-invoice/ Sun, 19 Jul 2026 00:00:00 GMT The job is done and the quote was accepted. Getting from one document to the other should take two minutes, not twenty. https://www.opsliy.com/paperwork-for-returns/ https://www.opsliy.com/paperwork-for-returns/ Thu, 16 Jul 2026 00:00:00 GMT Goods come back more often than anyone plans for. Three documents keep it from turning into an argument about who has what. https://www.opsliy.com/custom-labels-on-your-documents/ https://www.opsliy.com/custom-labels-on-your-documents/ Mon, 13 Jul 2026 00:00:00 GMT Every heading on the sheet is editable. Change the ones that do not match your trade, save once, and the vocabulary is yours. https://www.opsliy.com/invoicing-without-an-internet-connection/ https://www.opsliy.com/invoicing-without-an-internet-connection/ Fri, 10 Jul 2026 00:00:00 GMT A basement, a rural site, a plane. The work still happened, and the paperwork should not have to wait for a signal. https://www.opsliy.com/organising-your-invoice-files/ https://www.opsliy.com/organising-your-invoice-files/ Tue, 07 Jul 2026 00:00:00 GMT Nothing is stored for you, so the folder on your own machine is the whole record. It is worth ten minutes of structure. https://www.opsliy.com/adding-your-logo-to-an-invoice/ https://www.opsliy.com/adding-your-logo-to-an-invoice/ Sat, 04 Jul 2026 00:00:00 GMT A logo makes a document look like it came from a business. It also prints badly more often than anything else on the page. https://www.opsliy.com/how-long-to-keep-invoices/ https://www.opsliy.com/how-long-to-keep-invoices/ Wed, 01 Jul 2026 00:00:00 GMT Longer than you think, and the obligation is yours rather than any software's. Here is what to keep and in what form. https://www.opsliy.com/a-ten-minute-invoicing-routine/ https://www.opsliy.com/a-ten-minute-invoicing-routine/ Sun, 28 Jun 2026 00:00:00 GMT Most people invoice in a bad hour on a Sunday. A fixed slot on a fixed day turns it into a short, dull, reliable task. https://www.opsliy.com/when-a-free-invoice-tool-is-enough/ https://www.opsliy.com/when-a-free-invoice-tool-is-enough/ Thu, 25 Jun 2026 00:00:00 GMT For a great many businesses, a page that makes a correct document is the entire requirement. Here is where that stops being true. https://www.opsliy.com/billing-expenses-back-to-a-client/ https://www.opsliy.com/billing-expenses-back-to-a-client/ Mon, 22 Jun 2026 00:00:00 GMT Travel, materials, printing, a courier. Recharging costs is easy to get wrong and easy to get right, and the difference is agreeing it first. https://www.opsliy.com/when-a-customer-pays-the-wrong-amount/ https://www.opsliy.com/when-a-customer-pays-the-wrong-amount/ Fri, 19 Jun 2026 00:00:00 GMT Short by a hundred, over by a thousand, or a round figure that matches nothing. Three situations, three pieces of paper.