Slow Sauntering Trip through Lisbon
I'm headed to Lisbon in early October for 13 days. I don't want to rip and run through the city, I'd like to wander mostly while not missing big requirements. I want to be comfortable in Lisbon, find where people/locals enjoy by walking around without a destination. Basically I want to be as normal as possible but on another dot on the earth.
I've searched a bunch on reddit and the web but any extended stay itinerary is about fitting as many day trips or days in other cities/Spain as possible.
I have 1 night booked in Porto on my 3rd day in the country but I'm willing to cancel (or move it).
Still unplanned but considering a 1/2 day trip to Calais and Sintra each (different days ofc)
Aside from that I'll do my best to wander and lounge, sip coffee, drink wine, find snacks, do some work, take whatever sun there is and make friends.
tl;dr q's
a) most importantly - when a tourist has run out of tourist spots to go where should they visit/wander in lisbon?
b) if i need to work connected to the internet for a few hours, where are the best places to go outside my room? Are there places that are lenient toward lingering hours taking up table space with a laptop?
c) porto for 2 days 1 night ok? (by train from lisbon)
d) is calais a worthy visit in early-mid october?
e) is sintra a must?
f) are any pre-arranged tours worth it? // any obscure tours to check out?
thanks friends