We wrote our own ERP and accounting system. OK we partnered up with someone who did it for his factory (he's an accountant by trade and a FOSS lover) and hired

We wrote our own ERP and accounting system. OK we partnered up with someone who did it for his factory (he's an accountant by trade and a FOSS lover) and hired a programmer to continue development. We are a small company (~GBP1.5M pa) but we have some fairly complex needs. I'm the only full time Linux user in the firm but as the MD I get by quite happily with Arch on my desktop and laptop, Libre Office and Evolution instead of MS apps - we use Exchange exclusively btw and Evo has a very stable EWS connector and supports Kerberos. Add winbind and I am "domain joined". I use an auto mounter that makes the Windows server shares appear under my home directory as needed. I have CUPS which is also Kerberized. My machine is quite often used by the staff as a handy set of utilities on the end of PuTTY, which supports GSSAPI for SSO. I own an IT company and also find entrenched tastes hard to combat. Oh well, Rome wasn't built in a day. The main trouble is MSDN and NFR makes cost/benefit hard to fly as an argument. Just like the drugs industry, the pushers get their drugs/apps for free!