Think theres a similar thread on this, but I thought of this earlier so figured I'd post it anyway.
Three things you own that you didn't own before that now you can't live without?
1 - My tablet. Never go anywhere without it, from youtube to emails and skype to games and documents, really made everything I do these days all the better, and more then my phone due to the larger screen.
2 - My pocket pen fan. I suffer from getting warm easily due to my blood pressure, so usually need a fan around to help cool me down. So having it as a pen really helped in my workspace since nobody complains now about me having a fan with me.
3 - My timesulin pen cap. Its a replacement for my insulin pens cap that resets a timer every time its used, so I can see when I did my last injection. I sometimes have forgotten if I did one, since its so routine, so having this stops me overdosing on insulin.