When you spend a long time without programming, and you start to code again, you can forget a lot of things and the programming stay slow...
When you pratice some sport, it's easy get again the form: training in the desired sport. But in programming, what your method to regain the speed and memory to code after long time without job?
I think in to try recreate basic algoritms, like quick sort. When you start just to copy-and-paste code found in webpages, it doesn't help in regain coding skill...