Walkie talkies work pretty well for my situation. I bought 4 of them. They came with 2 chargers.
So far they are OK. When we get out of their range, we switch to cellies, but I still find myself wanting something better, but real convenient.
You need to dump those silly 0.5W FRS walkies-talkie radios and go full GMRS.
GMRS goes from 5W up to 50W radios.
Here is the break down of FRS vs GMRS vs MURS
FRS 1-7:
FRS only: 0.5 watt maximum
GMRS: 5 watt maximum (more power here than CB)

Repeater use: prohibited (simplex only)
License/call letters required: only when operating GMRS equipment greater than 0.5 watt (people sometimes use handles on FRS and GMRS; call letters must always be announced on-air regardless)
CTCSS/DCS: allowed
Regulation (FRS): 47 CFR 95.194c
Regulation (GMRS): 47 CFR 95.179
FRS 8-14:
FRS only: 0.5 watt maximum
GMRS: prohibited (though most mainstream GMRS HTs do include 0.5 watt coverage of 8-14 for interoperability purposes)
Repeater use: prohibited (simplex only)
License/call letters required: no
CTCSS/DCS: allowed
This is where GMRS SHINES !
GMRS 15-22 (a.k.a. 550-725)
FRS only: not applicable (typically no kids messing in this area)
GMRS: 50 watts maximum

(Power equal to many 2M ham radios.)
Repeater use: allowed; +5 MHz shift

License/call letters required: always; people sometimes use handles on GMRS but call letters must always be announced on-air regardless
CTCSS/DCS: allowed (may be required to access repeaters)
Other restrictions: Channels 19 and 21 (650/700) not permitted for use near the Canadian border
MURS
All channels: 2 watts maximum

Bandwidth: 1-3: 11 kHz; 4-5: 20 kHz
Deviation: 1-3: 2.5 kHz; 4-5: 5 kHz
Repeater use: prohibited (simplex only)
License required:
not required for personal use, may be required if used during the course of duties in a place of business; people sometimes use handles on MURS when conducting personal communications
CTCSS/DCS: allowed
See also:
Family Radio Service - The RadioReference Wiki
General Mobile Radio Service - The RadioReference Wiki
Multi-Use Radio Service - The RadioReference Wiki