I opened a LTD. in june 2015. I am focusing mainly on software services, mostly building my stuff (to help refugees (www.refugeeswork.com), to teach coding (http://app.wizardamigos.com) etc.) and because they don’t bring any money, I do some gigs from time to time.
Had one big project last year and this money I save for investment into promotion for my apps (for example, currently I am on a tour to organize workshops in Asia and to get more users on the apps so in the future I can monetize my affords when there is enough users and I can offer premium features.)
Next thing. Because I travel, I don’t have the address in UK, so I use virtual address where I receive all my post.
I am therefore not employed in my company so I don’t pay myself any salary, I just use the money for work related costs (renting an office, paying for domains, web hosting, phone etc.)
All my incoming and outgoing invoices are on Quickfile (I can share my account with you).
For banking I use a private account at German bank, but I use this account purely for business purpose, so all the transactions are revenue or company costs.
Some little costs I was covering with my private money (cash, Paypal etc.), but I have receipts and have to return this money to myself in the future (all together maybe around 500eur).