Telegram's Saved Messages feature (which is basically a chat with oneself) helps me a lot - it loads in the web interface instantly and works like an ultra-ligh

Telegram's Saved Messages feature (which is basically a chat with oneself) helps me a lot - it loads in the web interface instantly and works like an ultra-light notes app, where you can also post files and images, search your notes, edit and delete items. Everything is instantly shared between web and mobile. The drawback is that you can have only one Saved Messages chat and no way to tag messages by project - it becomes messy when you use it for several projects at once. For a small team, per-project chats are also very helpful - you can easily recall what you were discussing or planning to do several months ago.