驾轻就熟

jiàqīng-jiùshú

[drive a light carriage on a familiar road; be able to handle a job with ease because one had previous experience; do a familiar work with ease; make easy progress through experience] 做事从轻松的着手, 由熟悉的开始。 比喻技艺娴熟, 毫不费力

足下旧地重游, 可谓驾轻就熟, 一路顺风