DW and I are headed to London in late September for 7 full days: a 5-day Rabbie's tour of England and Wales, bookended by 2 full days in/near London. We were last there in 1993.
We are limited to carry-on luggage only - no checked bags. I'm interested in feedback and tips on packing and plans. I'm debating several elements:
Luggage: DW has a spinner that meets dimensional limits. I have an light/soft REI duffel that can conform to the same limits (I've tested). For personal item, I often use an LL Bean bookpack on Southwest's 737s, but I see the claimed limits of underseat storage on our transatlantic planes (767-400 and A330neo; we're in economy) to be surprisingly small at about 14x12x8. Is it really that small? Enforced?
Umbrella: I have a rain jacket, but am not 100% certain it's waterproof. It may wet out, or maybe moisture just condenses on the inside. It did hold a puddle of water over a bucket for 30 min.
Shoes: Adidas trail runners vs. Ecco slip-on loafers. Also, take a spare pair? My feet are size 10-11 and again, we are tight for space. Found some very light Sketchers at Costco with canvas uppers.
Clothesline: RS store has a braided one, but I have lots of cordage and knowledge of knots and hitches. Just use what I have? Is the braided one that much better?
Maps: Detailed maps are hard for me to read, even with reading glasses. I do have a bit of a magnifier on my hiking compass, but I'm leaning toward relying printouts / screenshots from home and DW's phone.
Photos: DSLR vs. Superzoom (to me, phone pix are too noisy): The DSLR takes superior pictures, no question. The Superzoom takes good pictures, can do panorama shots, is a few ounces lighter and substantially more compact.
Phone: DW's employer will set her iPhone up with an eSIM and allows (some) personal use. Just forward everything to that? I'm not a smartphone user anymore, but I have an old one (unlocked 4G Tracfone, out of service) that I could fit with a giffgaff SIM. Also have a 4G flip, in service.
Computer: My aged laptop is way too big and heavy to bring. Not sure about going 8 days without checking email (nor how much time we'd have to do so). Am considering a Raspberry Pi setup - have done so before in lodgings, using HDMI to TV. Where we'll be, TVs tend to be mounted high on wall or atop dressers.
Converter: I will probably get 1-2 plug converters from the RS store, and maybe bring an extension cord with 2-3 inputs. DW's iPhone must charge daily.
Payments: I have 1 Visa and 1 Mastercard that have no foreign transaction fees (FTF). But one of our B&Bs on tour requires cash payment. To get cash from their UK partner's ATM, our bank appears to levy 8.5% on it when you combine their 5.5% spread (inferred) and a 3% FTF. So I've just ordered Fidelity's CMA debit card, 1% FTF. We could use Schwab, but it seems to be a wash, all things considered.
Dinner Reservations: truly necessary in late Sept/early Oct, in London/Shrewsbury/York? My intuition is to stay flexible - maybe we'd like to dine with another couple we'll meet on the tour. Maybe we'd prefer a lighter dinner since it'll be so late on tour (7-7:30pm).
Bookend days: Top of our wishlist for our London days are London Walks and shows. At least one of each. Perhaps Evensong at Westminster Abbey or St. Paul's. Next up might have been Bletchley Park, but from where we'll be (Heathrow), it looks to be a 4h roundtrip (we won't have a car), plus quite a bit of expense (@peak) and hassle to get there. So we'll probably take the Tube back into London on our last full day. We're considering Windsor, Greenwich, Hampton Court, or museums (coupled with a tour, ideally). Oxford is pretty reachable by Heathrow, but we'll have just been in Cambridge, again (on the Rabbie's tour). But neither of us has been to Oxford before, and may not get another chance.