Arrange decks by function, not just topic: quick wins for morning sleepiness, core essentials for mid-ride focus, and stretch items when you unexpectedly get a seat. Tag collocations, idioms, and pronunciation notes separately. Use simple, uncluttered card fronts that force retrieval, with concise back explanations. Preload audio snippets for tricky words, and add a personal image when meaning feels abstract. Clear structure accelerates review and makes scheduling decisions effortless when time is tight.
Set up swipe-only interactions to minimize fumbles when the bus sways. Large tap targets, night mode, and locked orientation keep everything stable and legible. Favor a single-hand loop: reveal, respond, rate, next. Hide distracting features behind a long-press menu. Your tools should anticipate bumps, not demand precision. When comfort increases, focus improves, and your spaced intervals are applied with less friction, preserving the momentum that actually grows vocabulary retention over weeks.
Use low volume, single-ear listening, or bone-conduction headphones to stay aware of announcements while practicing. Pair native audio with short shadowing bursts, then immediately retrieve the word without sound. Download packs ahead of time to avoid connection drops. Keep clips short, repetitive, and consistent in accent. Brief sound bites build phonological memory, anchoring spellings and meanings. With respectful audio habits, you remain considerate to fellow riders and sustain concentration during even crowded commutes.